{"id":1154,"date":"2026-04-24T06:28:01","date_gmt":"2026-04-24T06:28:01","guid":{"rendered":"https:\/\/worm-and-worm-wheel.com\/?page_id=1154"},"modified":"2026-04-27T01:30:30","modified_gmt":"2026-04-27T01:30:30","slug":"home","status":"publish","type":"page","link":"https:\/\/worm-and-worm-wheel.com\/fr\/","title":{"rendered":"Maison"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;0px|||||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_code _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<!--<!-- [et_pb_line_break_holder] -->=====================================================================<!-- [et_pb_line_break_holder] -->Korea Ever-Power Worm Gear \u2014 Homepage (Divi Code Module, body-only)<!-- [et_pb_line_break_holder] -->Color System: Deep #0A2540 \/ Amber #F59E0B \/ Cyan #06B6D4 \/ Steel #475569<!-- [et_pb_line_break_holder] -->Font: Inter (system fallback)<!-- [et_pb_line_break_holder] -->Author note: no <html><head><body> tags. Scoped under .epg-v4<!-- [et_pb_line_break_holder] -->=====================================================================<!-- [et_pb_line_break_holder] -->&#8211;><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><\/p>\n<style><!-- [et_pb_line_break_holder] -->.epg-v4 *{box-sizing:border-box;margin:0;padding:0}<!-- [et_pb_line_break_holder] -->.epg-v4{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#1E293B;line-height:1.7;font-size:16px;--c-deep:#0A2540;--c-amber:#F59E0B;--c-cyan:#06B6D4;--c-steel:#475569;--c-mist:#F8FAFC;--c-line:#E2E8F0;--c-ink:#1E293B;background:#FFFFFF;isolation:isolate}<!-- [et_pb_line_break_holder] -->.epg-v4 section{display:block !important;visibility:visible !important}<!-- [et_pb_line_break_holder] -->.epg-v4 h1,.epg-v4 h2,.epg-v4 h3,.epg-v4 h4{font-weight:700;color:var(--c-deep);letter-spacing:-0.01em;line-height:1.25}<!-- [et_pb_line_break_holder] -->.epg-v4 h1{font-size:clamp(30px,4.5vw,52px);font-weight:800;letter-spacing:-0.02em}<!-- [et_pb_line_break_holder] -->.epg-v4 h2{font-size:clamp(22px,3vw,34px)}<!-- [et_pb_line_break_holder] -->.epg-v4 h3{font-size:clamp(17px,2vw,22px)}<!-- [et_pb_line_break_holder] -->.epg-v4 p{margin:0 0 14px}<!-- [et_pb_line_break_holder] -->.epg-v4 a{color:var(--c-amber);text-decoration:none}<!-- [et_pb_line_break_holder] -->.epg-v4 .mono{font-family:'JetBrains Mono','SF Mono','Courier New',monospace;font-size:0.9em}<!-- [et_pb_line_break_holder] -->.epg-v4 .chapter-tag{display:inline-block;font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--c-amber);letter-spacing:0.15em;text-transform:uppercase;margin-bottom:10px;font-weight:600}<!-- [et_pb_line_break_holder] -->.epg-v4 .sec-head{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:28px}<!-- [et_pb_line_break_holder] -->.epg-v4 .sec-head .num{font-family:'JetBrains Mono',monospace;font-size:clamp(34px,4vw,48px);color:var(--c-line);font-weight:800}<!-- [et_pb_line_break_holder] -->.epg-v4 .sec-head h2{flex:1;min-width:220px}<!-- [et_pb_line_break_holder] -->.epg-v4 section{padding:70px 28px;max-width:1240px;margin:0 auto}<!-- [et_pb_line_break_holder] -->.epg-v4 section.full{max-width:none;padding-left:0;padding-right:0}<!-- [et_pb_line_break_holder] -->.epg-v4 section.full > .inner{max-width:1240px;margin:0 auto;padding:0 28px}<!-- [et_pb_line_break_holder] -->.epg-v4 .reveal{opacity:1}<!-- [et_pb_line_break_holder] -->.epg-v4.js-anim .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}<!-- [et_pb_line_break_holder] -->.epg-v4.js-anim .reveal.in{opacity:1;transform:none}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Hero (Chapter 01) ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .hero{padding:64px 0 90px;background:linear-gradient(110deg,rgba(10,37,64,.82) 0%,rgba(16,46,79,.62) 55%,rgba(20,54,98,.38) 100%),url('https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/worm-and-worm-wheel.webp') center\/cover no-repeat #0A2540;color:#fff;position:relative;max-width:none}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero::before{content:\"\";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;pointer-events:none}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero-inner{max-width:1240px;margin:0 auto;padding:0 32px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;position:relative;z-index:1}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero h1{color:#fff;margin-bottom:18px}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero h1 em{font-style:normal;color:var(--c-amber);font-weight:800}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero .sub{font-size:clamp(15px,1.6vw,18px);color:#CBD5E1;max-width:540px;margin-bottom:24px}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero .micro-stats{display:flex;gap:24px;flex-wrap:wrap;padding:16px 0;border-top:1px solid rgba(255,255,255,.15);border-bottom:1px solid rgba(255,255,255,.15);margin-bottom:28px}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero .micro-stats div{font-size:13px;color:#94A3B8}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero .micro-stats strong{display:block;font-size:22px;color:var(--c-cyan);font-family:'JetBrains Mono',monospace;font-weight:700;margin-bottom:2px}<!-- [et_pb_line_break_holder] -->.epg-v4 .cta{display:inline-flex;align-items:center;gap:10px;background:var(--c-amber);color:#0A2540;padding:14px 28px;border-radius:4px;font-weight:700;font-size:15px;transition:transform .2s,box-shadow .2s;border:none;cursor:pointer}<!-- [et_pb_line_break_holder] -->.epg-v4 .cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(245,158,11,.4)}<!-- [et_pb_line_break_holder] -->.epg-v4 .cta.outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.3)}<!-- [et_pb_line_break_holder] -->.epg-v4 .cta.outline:hover{border-color:var(--c-amber);color:var(--c-amber);box-shadow:none}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero-cta{display:flex;gap:14px;flex-wrap:wrap}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero-visual{position:relative;display:flex;align-items:center;justify-content:center;min-height:360px}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero-visual svg{width:100%;max-width:460px;height:auto}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero-worm{transform-origin:280px 180px;animation:wormSpin 5s linear infinite}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero-wheel{transform-origin:145px 180px;animation:wheelSpin 15s linear infinite reverse}<!-- [et_pb_line_break_holder] -->@keyframes wormSpin{to{transform:rotate(360deg)}}<!-- [et_pb_line_break_holder] -->@keyframes wheelSpin{to{transform:rotate(-360deg)}}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero-search{max-width:760px;margin:32px auto 0;background:#fff;border-radius:8px;box-shadow:0 16px 40px rgba(10,37,64,.25);padding:6px 6px 6px 20px;display:flex;align-items:center;gap:10px;position:relative;z-index:2}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero-search input{flex:1;min-width:0;border:none;outline:none;font:inherit;font-size:15px;padding:14px 4px;background:transparent;color:var(--c-ink)}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero-search button{flex-shrink:0;background:var(--c-deep);color:#fff;border:none;padding:12px 22px;border-radius:5px;font-weight:600;cursor:pointer;font-size:14px;transition:background .2s}<!-- [et_pb_line_break_holder] -->.epg-v4 .hero-search button:hover{background:var(--c-amber);color:var(--c-deep)}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- What are worm gears (02) \u2014 anatomy ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .anatomy{display:grid;grid-template-columns:1fr 1.1fr;gap:50px;align-items:center;margin-top:14px}<!-- [et_pb_line_break_holder] -->.epg-v4 .anatomy-img{position:relative;border-radius:10px;overflow:hidden;background:var(--c-mist);aspect-ratio:4\/3;display:flex;align-items:center;justify-content:center}<!-- [et_pb_line_break_holder] -->.epg-v4 .anatomy-img img{width:100%;height:100%;object-fit:cover;display:block}<!-- [et_pb_line_break_holder] -->.epg-v4 .hotspot{position:absolute;width:26px;height:26px;border-radius:50%;background:var(--c-amber);color:var(--c-deep);border:3px solid #fff;box-shadow:0 4px 10px rgba(0,0,0,.15);font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .2s}<!-- [et_pb_line_break_holder] -->.epg-v4 .hotspot:hover{transform:scale(1.2)}<!-- [et_pb_line_break_holder] -->.epg-v4 .hotspot::after{content:attr(data-tip);position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);background:var(--c-deep);color:#fff;padding:8px 12px;border-radius:4px;font-size:12px;font-weight:500;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s}<!-- [et_pb_line_break_holder] -->.epg-v4 .hotspot:hover::after{opacity:1}<!-- [et_pb_line_break_holder] -->.epg-v4 .h1{top:28%;left:40%}<!-- [et_pb_line_break_holder] -->.epg-v4 .h2-pt{top:60%;left:62%}<!-- [et_pb_line_break_holder] -->.epg-v4 .h3-pt{top:22%;left:72%}<!-- [et_pb_line_break_holder] -->.epg-v4 .h4-pt{top:74%;left:28%}<!-- [et_pb_line_break_holder] -->.epg-v4 .selflock{margin-top:28px;background:#FFFBEB;border-left:4px solid var(--c-amber);padding:20px 24px;border-radius:0 6px 6px 0}<!-- [et_pb_line_break_holder] -->.epg-v4 .selflock h3{color:var(--c-deep);margin-bottom:6px;font-size:18px}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Three types (03) \u2014 alternating rows ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .type-grid{display:flex;flex-direction:column;gap:44px;margin-top:18px}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-row{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-row:nth-child(even) .type-img{order:2}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-img{border-radius:12px;overflow:hidden;aspect-ratio:4\/3;background:var(--c-mist);transition:transform .4s ease, box-shadow .4s ease}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-img:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(10,37,64,.16)}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s ease}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-img:hover img{transform:scale(1.05)}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-text{padding:8px 4px}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-text .tt-label{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--c-amber);letter-spacing:.14em;text-transform:uppercase;font-weight:600;margin-bottom:10px}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-text h3{margin-bottom:10px;font-size:clamp(19px,2.2vw,24px)}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-text .tt-meta{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-text .tt-meta span{font-family:'JetBrains Mono',monospace;font-size:11px;background:var(--c-mist);color:var(--c-steel);padding:3px 10px;border-radius:3px;border:1px solid var(--c-line)}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-text p{color:var(--c-steel);margin-bottom:12px;font-size:15px}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-text .tt-badge{display:inline-flex;align-items:center;gap:8px;background:#FFFBEB;color:var(--c-deep);border:1px solid #FDE68A;border-radius:6px;padding:8px 14px;font-size:13px;font-weight:600}<!-- [et_pb_line_break_holder] -->.epg-v4 .type-text .tt-badge::before{content:\"\u2605\";color:var(--c-amber)}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Working principle (04) with ratio calculator ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .work-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:flex-start}<!-- [et_pb_line_break_holder] -->.epg-v4 .work-steps{list-style:none}<!-- [et_pb_line_break_holder] -->.epg-v4 .work-steps li{position:relative;padding:16px 18px 16px 62px;margin-bottom:14px;border-left:3px solid var(--c-line);transition:border-color .3s,background .3s;cursor:default;border-radius:0 6px 6px 0}<!-- [et_pb_line_break_holder] -->.epg-v4 .work-steps li:hover,.epg-v4 .work-steps li.active{border-left-color:var(--c-amber);background:#FFFBEB}<!-- [et_pb_line_break_holder] -->.epg-v4 .work-steps li::before{content:attr(data-step);position:absolute;left:14px;top:50%;transform:translateY(-50%);width:34px;height:34px;border-radius:50%;background:var(--c-deep);color:#fff;display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-weight:700;font-size:14px;transition:background .3s}<!-- [et_pb_line_break_holder] -->.epg-v4 .work-steps li.active::before,.epg-v4 .work-steps li:hover::before{background:var(--c-amber);color:var(--c-deep)}<!-- [et_pb_line_break_holder] -->.epg-v4 .work-steps h4{font-size:16px;margin-bottom:4px}<!-- [et_pb_line_break_holder] -->.epg-v4 .work-steps p{font-size:14px;margin:0;color:var(--c-steel)}<!-- [et_pb_line_break_holder] -->.epg-v4 .work-visual{position:sticky;top:24px;background:var(--c-mist);border:1px solid var(--c-line);border-radius:10px;padding:22px;aspect-ratio:4\/3;display:flex;align-items:center;justify-content:center}<!-- [et_pb_line_break_holder] -->.epg-v4 .work-visual img{max-width:100%;max-height:100%;object-fit:contain}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-calc{margin-top:40px;background:var(--c-deep);color:#fff;border-radius:10px;padding:28px 32px;display:grid;grid-template-columns:1fr auto 1fr auto 1.2fr;gap:20px;align-items:center}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-calc label{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:#94A3B8;margin-bottom:6px;font-family:'JetBrains Mono',monospace}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-calc input{width:100%;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#fff;padding:10px 14px;border-radius:5px;font-family:'JetBrains Mono',monospace;font-size:20px;font-weight:700;text-align:center;outline:none;transition:border-color .2s}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-calc input:focus{border-color:var(--c-amber)}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-calc .op{font-size:28px;color:var(--c-cyan);font-family:'JetBrains Mono',monospace;font-weight:300;padding-top:22px}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-calc .result{padding-top:18px}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-calc .result .rbox{background:var(--c-amber);color:var(--c-deep);padding:10px 16px;border-radius:5px;font-family:'JetBrains Mono',monospace;font-size:24px;font-weight:800;text-align:center}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-calc .note{grid-column:1\/-1;font-size:13px;color:#94A3B8;margin-top:6px;text-align:center;font-family:'JetBrains Mono',monospace}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-schematic{margin:0 0 24px;padding:0;background:var(--c-mist);border:1px solid var(--c-line);border-radius:12px;overflow:hidden}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-schematic img{display:block;width:100%;max-width:880px;height:auto;margin:0 auto;padding:20px 20px 8px}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-schematic figcaption{padding:14px 28px 22px;font-size:14.5px;color:var(--c-steel);text-align:center;line-height:1.65;max-width:920px;margin:0 auto}<!-- [et_pb_line_break_holder] -->.epg-v4 .ratio-schematic figcaption strong{color:var(--c-deep)}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Components (05) ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .comp-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px}<!-- [et_pb_line_break_holder] -->.epg-v4 .comp-card{border:1px solid var(--c-line);border-radius:10px;overflow:hidden;transition:transform .3s,box-shadow .3s}<!-- [et_pb_line_break_holder] -->.epg-v4 .comp-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(10,37,64,.1)}<!-- [et_pb_line_break_holder] -->.epg-v4 .comp-card img{width:100%;aspect-ratio:5\/4;object-fit:cover;object-position:center;background:var(--c-mist);display:block}<!-- [et_pb_line_break_holder] -->.epg-v4 .comp-card .body{padding:24px 26px 28px}<!-- [et_pb_line_break_holder] -->.epg-v4 .comp-card h3{display:flex;align-items:center;gap:10px;margin-bottom:10px}<!-- [et_pb_line_break_holder] -->.epg-v4 .comp-card h3 .idx{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--c-amber);background:#FFFBEB;padding:2px 8px;border-radius:3px}<!-- [et_pb_line_break_holder] -->.epg-v4 .comp-card ul{list-style:none;margin:12px 0 0;padding:0}<!-- [et_pb_line_break_holder] -->.epg-v4 .comp-card li{font-size:14px;padding:6px 0;border-top:1px dashed var(--c-line);color:var(--c-steel);display:flex;justify-content:space-between}<!-- [et_pb_line_break_holder] -->.epg-v4 .comp-card li strong{color:var(--c-deep);font-family:'JetBrains Mono',monospace;font-size:13px}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Materials (06) ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:16px 0;border-radius:10px}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-scroll::-webkit-scrollbar{height:6px}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-scroll::-webkit-scrollbar-track{background:var(--c-line);border-radius:3px}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-scroll::-webkit-scrollbar-thumb{background:var(--c-amber);border-radius:3px}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-table{width:100%;min-width:720px;border-collapse:separate;border-spacing:0;font-size:14.5px;background:#fff;border:1px solid var(--c-line);border-radius:10px;overflow:hidden}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-table thead th{background:var(--c-deep);color:#fff;text-align:left;padding:14px 16px;font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.05em}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-table tbody td{padding:14px 16px;border-top:1px solid var(--c-line);vertical-align:top}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-table tbody tr:hover{background:#FFFBEB}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-table .bar{height:8px;background:var(--c-line);border-radius:4px;overflow:hidden;position:relative}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-table .bar span{display:block;height:100%;background:var(--c-amber);width:var(--w);transition:width 1.4s ease-out}<!-- [et_pb_line_break_holder] -->.epg-v4.js-anim .mat-table .bar span{width:0}<!-- [et_pb_line_break_holder] -->.epg-v4.js-anim .mat-table .bar.in span{width:var(--w)}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-legend{font-size:12px;color:var(--c-steel);margin-top:10px;font-family:'JetBrains Mono',monospace}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-foot{display:grid;grid-template-columns:minmax(360px,520px) 1fr;gap:32px;align-items:center;margin-top:26px}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-foot img{width:100%;height:auto;border-radius:10px;display:block;border:1px solid var(--c-line)}<!-- [et_pb_line_break_holder] -->.epg-v4 .mat-foot p{margin:0;font-size:15px;color:var(--c-steel);line-height:1.7}<!-- [et_pb_line_break_holder] -->@media (max-width:760px){.epg-v4 .mat-foot{grid-template-columns:1fr;gap:20px}.epg-v4 .mat-foot img{max-width:100%;margin:0 auto}}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Mounting methods (07) ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:10px}<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-card{background:#fff;border:1px solid var(--c-line);border-radius:10px;padding:26px 24px;transition:transform .3s,border-color .3s}<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-card:hover{transform:translateY(-6px);border-color:var(--c-cyan)}<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-card .diag{height:130px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;background:var(--c-mist);border-radius:6px;overflow:hidden}<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-card .diag svg{width:70%;height:auto}<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-card h3{font-size:16px;margin-bottom:8px;display:flex;align-items:center;gap:8px}<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-card h3::before{content:\"\";display:inline-block;width:6px;height:16px;background:var(--c-amber);border-radius:2px}<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-card p{font-size:13.5px;color:var(--c-steel);margin:0}<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-card .use{margin-top:12px;padding-top:12px;border-top:1px dashed var(--c-line);font-size:12px;color:var(--c-steel);font-family:'JetBrains Mono',monospace}<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-banner{margin-top:28px;border-radius:10px;overflow:hidden}<!-- [et_pb_line_break_holder] -->.epg-v4 .mount-banner img{width:100%;height:auto;display:block}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Why Ever-Power (07B) ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .why-wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:36px;align-items:stretch;margin-top:20px}<!-- [et_pb_line_break_holder] -->.epg-v4 .why-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}<!-- [et_pb_line_break_holder] -->.epg-v4 .why-card{background:var(--c-mist);border:1px solid var(--c-line);border-radius:8px;padding:20px 22px;transition:transform .3s, border-color .3s, box-shadow .3s}<!-- [et_pb_line_break_holder] -->.epg-v4 .why-card:hover{transform:translateY(-4px);border-color:var(--c-amber);box-shadow:0 12px 28px rgba(10,37,64,.08)}<!-- [et_pb_line_break_holder] -->.epg-v4 .why-card p{font-size:13.5px;margin:6px 0 0;color:var(--c-steel);line-height:1.6}<!-- [et_pb_line_break_holder] -->.epg-v4 .why-image{border-radius:10px;overflow:hidden;min-height:100%;display:flex}<!-- [et_pb_line_break_holder] -->.epg-v4 .why-image img{width:100%;height:100%;min-height:340px;object-fit:cover;display:block;transition:transform .6s ease}<!-- [et_pb_line_break_holder] -->.epg-v4 .why-image:hover img{transform:scale(1.05)}<!-- [et_pb_line_break_holder] -->@media (max-width:900px){<!-- [et_pb_line_break_holder] --> .epg-v4 .why-wrap{grid-template-columns:1fr}<!-- [et_pb_line_break_holder] --> .epg-v4 .why-image{display:none}<!-- [et_pb_line_break_holder] --> .epg-v4 .why-cards{grid-template-columns:1fr}<!-- [et_pb_line_break_holder] -->}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Categories (08) ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:14px}<!-- [et_pb_line_break_holder] -->.epg-v4 .cat-card{background:#fff;border:1px solid var(--c-line);border-radius:10px;padding:22px;display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--c-ink);transition:transform .25s,border-color .25s,box-shadow .25s}<!-- [et_pb_line_break_holder] -->.epg-v4 .cat-card:hover{transform:translateY(-4px);border-color:var(--c-amber);box-shadow:0 10px 28px rgba(10,37,64,.1);color:var(--c-ink)}<!-- [et_pb_line_break_holder] -->.epg-v4 .cat-card .ico{width:52px;height:52px;border-radius:8px;background:var(--c-mist);display:flex;align-items:center;justify-content:center;flex-shrink:0}<!-- [et_pb_line_break_holder] -->.epg-v4 .cat-card .ico svg{width:28px;height:28px;fill:var(--c-deep)}<!-- [et_pb_line_break_holder] -->.epg-v4 .cat-card:hover .ico{background:var(--c-amber)}<!-- [et_pb_line_break_holder] -->.epg-v4 .cat-card:hover .ico svg{fill:var(--c-deep)}<!-- [et_pb_line_break_holder] -->.epg-v4 .cat-card h4{font-size:15px;color:var(--c-deep);margin-bottom:2px;line-height:1.3}<!-- [et_pb_line_break_holder] -->.epg-v4 .cat-card p{font-size:12px;color:var(--c-steel);margin:0;font-family:'JetBrains Mono',monospace}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Products grid (merged catalogue) ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:14px}<!-- [et_pb_line_break_holder] -->.epg-v4 .prod-card{background:#fff;border:1px solid var(--c-line);border-radius:10px;overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s;text-decoration:none;color:var(--c-ink);display:flex;flex-direction:column}<!-- [et_pb_line_break_holder] -->.epg-v4 .prod-card:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(10,37,64,.14);color:var(--c-ink);border-color:var(--c-amber)}<!-- [et_pb_line_break_holder] -->.epg-v4 .prod-card .img{aspect-ratio:1\/1;overflow:hidden;background:var(--c-mist)}<!-- [et_pb_line_break_holder] -->.epg-v4 .prod-card .img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s}<!-- [et_pb_line_break_holder] -->.epg-v4 .prod-card:hover .img img{transform:scale(1.06)}<!-- [et_pb_line_break_holder] -->.epg-v4 .prod-card .body{padding:18px 20px 20px;flex:1;display:flex;flex-direction:column}<!-- [et_pb_line_break_holder] -->.epg-v4 .prod-card .body h4{font-size:16px;line-height:1.35;margin-bottom:8px;color:var(--c-deep)}<!-- [et_pb_line_break_holder] -->.epg-v4 .prod-card .cat-pill{font-size:11px;font-family:'JetBrains Mono',monospace;color:var(--c-amber);text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px}<!-- [et_pb_line_break_holder] -->.epg-v4 .prod-card .prod-desc{font-size:13.5px;color:var(--c-steel);margin:0;line-height:1.55}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Applications (10) ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .app-section{background:#0A2540;color:#fff;max-width:none;padding:70px 28px}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-section .chapter-tag{color:var(--c-cyan)}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-section .sec-head .num{color:rgba(255,255,255,.15)}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-section h2,.epg-v4 .app-section h3,.epg-v4 .app-section h4{color:#fff}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-section p{color:#CBD5E1}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-inner{max-width:1240px;margin:0 auto}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-intro{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center;margin:24px 0 30px}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-intro-text p{font-size:15px;line-height:1.75;margin:0;color:#CBD5E1}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-intro-image{border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03)}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-intro-image img{width:100%;height:auto;display:block;transition:transform .6s ease}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-intro-image:hover img{transform:scale(1.03)}<!-- [et_pb_line_break_holder] -->@media (max-width:900px){.epg-v4 .app-intro{grid-template-columns:1fr;gap:24px}}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-text-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-text-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:22px 22px 24px;transition:transform .3s, background .3s, border-color .3s}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-text-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.07);border-color:var(--c-cyan)}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-text-card .atc-head{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.08em;color:var(--c-cyan);font-weight:700;margin-bottom:10px;text-transform:uppercase}<!-- [et_pb_line_break_holder] -->.epg-v4 .app-text-card p{font-size:13.5px;line-height:1.6;margin:0;color:#CBD5E1}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Advantages \/ limitations \/ lubrication (11) ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-bottom:36px}<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-col{background:#fff;border:1px solid var(--c-line);border-radius:10px;padding:28px 30px}<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-col.pros{border-top:4px solid #10B981}<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-col.cons{border-top:4px solid #EF4444}<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-col h3{font-size:18px;margin-bottom:14px;display:flex;align-items:center;gap:10px}<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-col ul{list-style:none}<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-col li{padding:10px 0 10px 28px;border-bottom:1px dashed var(--c-line);position:relative;font-size:14.5px;color:var(--c-steel)}<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-col li:last-child{border-bottom:none}<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-col.pros li::before{content:\"\u2713\";position:absolute;left:0;top:10px;color:#10B981;font-weight:700}<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-col.cons li::before{content:\"\u00d7\";position:absolute;left:0;top:8px;color:#EF4444;font-weight:700;font-size:20px;line-height:1}<!-- [et_pb_line_break_holder] -->.epg-v4 .adv-col li strong{color:var(--c-deep);font-weight:600}<!-- [et_pb_line_break_holder] -->.epg-v4 .lube{background:var(--c-mist);border-radius:10px;padding:28px 30px;border:1px solid var(--c-line)}<!-- [et_pb_line_break_holder] -->.epg-v4 .lube h3{margin-bottom:12px;display:flex;align-items:center;gap:10px}<!-- [et_pb_line_break_holder] -->.epg-v4 .lube h3::before{content:\"\u2699\";color:var(--c-amber);font-size:24px}<!-- [et_pb_line_break_holder] -->.epg-v4 .lube-table{width:100%;border-collapse:collapse;margin-top:12px;font-size:14px}<!-- [et_pb_line_break_holder] -->.epg-v4 .lube-table th,.epg-v4 .lube-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--c-line)}<!-- [et_pb_line_break_holder] -->.epg-v4 .lube-table th{background:transparent;color:var(--c-steel);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.05em;font-family:'JetBrains Mono',monospace}<!-- [et_pb_line_break_holder] -->.epg-v4 .lube-table td.vg{font-family:'JetBrains Mono',monospace;color:var(--c-deep);font-weight:700}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Failure modes grid ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .fail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}<!-- [et_pb_line_break_holder] -->.epg-v4 .fail-card{border-left:3px solid #EF4444;padding:10px 0 10px 16px;transition:background .3s}<!-- [et_pb_line_break_holder] -->.epg-v4 .fail-card:hover{background:#FEF2F2}<!-- [et_pb_line_break_holder] -->.epg-v4 .fail-card strong{display:block;font-size:14px;color:var(--c-deep);margin-bottom:4px}<!-- [et_pb_line_break_holder] -->.epg-v4 .fail-card p{font-size:13px;color:var(--c-steel);margin:0;line-height:1.55}<!-- [et_pb_line_break_holder] -->@media (max-width:760px){.epg-v4 .fail-grid{grid-template-columns:1fr}}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Selection guide (12) ---------- *\/<!-- [et_pb_line_break_holder] -->.epg-v4 .guide{background:var(--c-mist);border-radius:12px;padding:34px 34px 30px}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-q{background:#fff;border:1px solid var(--c-line);border-radius:8px;margin-bottom:10px;overflow:hidden;transition:border-color .3s}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-q[open]{border-color:var(--c-amber)}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-q summary{padding:16px 22px;cursor:pointer;font-weight:600;display:flex;align-items:center;gap:14px;list-style:none;color:var(--c-deep);font-size:15px;user-select:none}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-q summary::-webkit-details-marker{display:none}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-q summary::after{content:\"+\";margin-left:auto;font-family:'JetBrains Mono',monospace;font-size:22px;color:var(--c-amber);font-weight:300;transition:transform .3s}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-q[open] summary::after{content:\"\u2212\"}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-q summary::before{content:attr(data-n);width:28px;height:28px;border-radius:50%;background:var(--c-deep);color:#fff;display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:700;flex-shrink:0}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-q[open] summary::before{background:var(--c-amber);color:var(--c-deep)}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-q .ans{padding:0 22px 20px 64px;color:var(--c-steel);font-size:14.5px}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-foot{margin-top:22px;padding:18px 22px;background:var(--c-deep);border-radius:8px;color:#fff;display:flex;align-items:center;gap:14px;flex-wrap:wrap}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-foot strong{flex:1;min-width:240px}<!-- [et_pb_line_break_holder] -->.epg-v4 .guide-foot .cta{background:var(--c-amber);padding:10px 22px}<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->\/* ---------- Responsive ---------- *\/<!-- [et_pb_line_break_holder] -->@media (max-width:900px){<!-- [et_pb_line_break_holder] --> .epg-v4 .hero-inner,.epg-v4 .anatomy,.epg-v4 .work-grid,.epg-v4 .comp-grid,.epg-v4 .adv-grid,.epg-v4 .type-row{grid-template-columns:1fr}<!-- [et_pb_line_break_holder] --> .epg-v4 .type-row:nth-child(even) .type-img{order:0}<!-- [et_pb_line_break_holder] --> .epg-v4 .mount-wrap,.epg-v4 .prod-grid,.epg-v4 .app-text-grid{grid-template-columns:repeat(2,1fr)}<!-- [et_pb_line_break_holder] --> .epg-v4 .work-visual{position:static}<!-- [et_pb_line_break_holder] --> .epg-v4 .ratio-calc{grid-template-columns:1fr;gap:14px}<!-- [et_pb_line_break_holder] --> .epg-v4 .ratio-calc .op{text-align:center;padding:0}<!-- [et_pb_line_break_holder] --> .epg-v4 .ratio-calc .result{padding:0}<!-- [et_pb_line_break_holder] --> .epg-v4 .hero-inner{padding:0 24px}<!-- [et_pb_line_break_holder] --> .epg-v4 .hero{padding:52px 0 70px}<!-- [et_pb_line_break_holder] -->}<!-- [et_pb_line_break_holder] -->@media (max-width:560px){<!-- [et_pb_line_break_holder] --> .epg-v4 section{padding:50px 20px}<!-- [et_pb_line_break_holder] --> .epg-v4 .hero{padding:44px 0 56px}<!-- [et_pb_line_break_holder] --> .epg-v4 .hero-inner{padding:0 20px}<!-- [et_pb_line_break_holder] --> .epg-v4 .sec-head .num{font-size:32px}<!-- [et_pb_line_break_holder] --> .epg-v4 .mount-wrap,.epg-v4 .prod-grid,.epg-v4 .app-text-grid{grid-template-columns:1fr}<!-- [et_pb_line_break_holder] --> .epg-v4 .hero-cta{flex-direction:column}<!-- [et_pb_line_break_holder] --> .epg-v4 .hero-cta .cta{width:100%;justify-content:center}<!-- [et_pb_line_break_holder] --> .epg-v4 .micro-stats{gap:16px}<!-- [et_pb_line_break_holder] -->}<!-- [et_pb_line_break_holder] --><\/style>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><\/p>\n<div class=\"epg-v4\"><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 01 \u2014 HERO<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section class=\"hero full\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"hero-inner\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <!-- [et_pb_line_break_holder] -->      <\/p>\n<h1>Pr\u00e9cision <em>vis sans fin et roue dent\u00e9e<\/em> Con\u00e7u pour l'industrie cor\u00e9enne.<\/h1>\n<p><!-- [et_pb_line_break_holder] -->      <pee class=\"sub\">Korea Ever-Power Worm And Worm Wheel Co., Ltd fabrique un catalogue complet de composants d'entra\u00eenement \u00e0 vis sans fin \u2014 des micro-modules de \u00d85 mm aux roues \u00e0 vis sans fin industrielles de \u00d8300 mm \u2014 exp\u00e9di\u00e9s depuis Ansan aux \u00e9quipementiers de Cor\u00e9e, du Japon et d'Asie du Sud-Est depuis 2015.<\/pee><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"micro-stats\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div><strong data-count=\"15\">15+<\/strong>Des ann\u00e9es pass\u00e9es sur le sol<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div><strong data-count=\"50\">50+<\/strong>Destinations d'exportation<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div><strong data-count=\"25\">25<\/strong>plomb standard de jour<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div><strong>DIN 5\u20137<\/strong>Niveau de pr\u00e9cision<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"hero-cta\"><!-- [et_pb_line_break_holder] -->        <a href=\"https:\/\/worm-and-worm-wheel.com\/fr\/categorie-produit\/worm-and-worm-wheel\/\" class=\"cta\">Consultez le catalogue \u2192<\/a><!-- [et_pb_line_break_holder] -->        <a href=\"\/fr\/contact\/\" class=\"cta outline\">Parlez \u00e0 un ing\u00e9nieur<\/a><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"hero-visual\"><!-- [et_pb_line_break_holder] -->      <!-- animated worm + worm wheel SVG --><!-- [et_pb_line_break_holder] -->      <svg viewbox=\"0 0 460 360\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\"><!-- [et_pb_line_break_holder] -->        <defs><!-- [et_pb_line_break_holder] -->          <lineargradient id=\"gM\" x1=\"0\" x2=\"1\" y1=\"0\" y2=\"1\"><!-- [et_pb_line_break_holder] -->            <stop offset=\"0\" stop-color=\"#F59E0B\"\/><!-- [et_pb_line_break_holder] -->            <stop offset=\"1\" stop-color=\"#D97706\"\/><!-- [et_pb_line_break_holder] -->          <\/lineargradient><!-- [et_pb_line_break_holder] -->          <lineargradient id=\"gC\" x1=\"0\" x2=\"0\" y1=\"0\" y2=\"1\"><!-- [et_pb_line_break_holder] -->            <stop offset=\"0\" stop-color=\"#06B6D4\"\/><!-- [et_pb_line_break_holder] -->            <stop offset=\"1\" stop-color=\"#0891B2\"\/><!-- [et_pb_line_break_holder] -->          <\/lineargradient><!-- [et_pb_line_break_holder] -->        <\/defs><!-- [et_pb_line_break_holder] -->        <!-- worm wheel --><!-- [et_pb_line_break_holder] -->        <g class=\"hero-wheel\"><!-- [et_pb_line_break_holder] -->          <circle cx=\"145\" cy=\"180\" r=\"98\" fill=\"url(#gC)\" stroke=\"#0A2540\" stroke-width=\"2\"\/><!-- [et_pb_line_break_holder] -->          <circle cx=\"145\" cy=\"180\" r=\"28\" fill=\"#0A2540\"\/><!-- [et_pb_line_break_holder] -->          <g stroke=\"#0A2540\" stroke-width=\"2\" fill=\"#06B6D4\"><!-- [et_pb_line_break_holder] -->            <!-- 24 teeth around wheel --><!-- [et_pb_line_break_holder] -->            <!-- Generated with js loop equivalent; baked into SVG --><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M170.9 84.1 l-3 -15 l11.5 3.1 z\" transform=\"rotate(15 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(30 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(45 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(60 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(75 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(90 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(105 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(120 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(135 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(150 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(165 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(180 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(195 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(210 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(225 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(240 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(255 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(270 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(285 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(300 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(315 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(330 145 180)\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M145 80 l-6 -14 l12 0 z\" transform=\"rotate(345 145 180)\"\/><!-- [et_pb_line_break_holder] -->          <\/g><!-- [et_pb_line_break_holder] -->        <\/g><!-- [et_pb_line_break_holder] -->        <!-- worm shaft --><!-- [et_pb_line_break_holder] -->        <g class=\"hero-worm\"><!-- [et_pb_line_break_holder] -->          <rect x=\"260\" y=\"165\" width=\"180\" height=\"30\" rx=\"3\" fill=\"url(#gM)\" stroke=\"#0A2540\" stroke-width=\"2\"\/><!-- [et_pb_line_break_holder] -->          <!-- thread lines --><!-- [et_pb_line_break_holder] -->          <g stroke=\"#0A2540\" stroke-width=\"1.5\" fill=\"none\"><!-- [et_pb_line_break_holder] -->            <path d=\"M268 165 Q276 180 268 195\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M284 165 Q292 180 284 195\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M300 165 Q308 180 300 195\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M316 165 Q324 180 316 195\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M332 165 Q340 180 332 195\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M348 165 Q356 180 348 195\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M364 165 Q372 180 364 195\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M380 165 Q388 180 380 195\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M396 165 Q404 180 396 195\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M412 165 Q420 180 412 195\"\/><!-- [et_pb_line_break_holder] -->            <path d=\"M428 165 Q436 180 428 195\"\/><!-- [et_pb_line_break_holder] -->          <\/g><!-- [et_pb_line_break_holder] -->          <!-- shaft ends --><!-- [et_pb_line_break_holder] -->          <circle cx=\"260\" cy=\"180\" r=\"8\" fill=\"#0A2540\"\/><!-- [et_pb_line_break_holder] -->          <circle cx=\"440\" cy=\"180\" r=\"8\" fill=\"#0A2540\"\/><!-- [et_pb_line_break_holder] -->        <\/g><!-- [et_pb_line_break_holder] -->        <!-- mesh indicator --><!-- [et_pb_line_break_holder] -->        <circle cx=\"245\" cy=\"180\" r=\"14\" fill=\"none\" stroke=\"#F59E0B\" stroke-width=\"2\" stroke-dasharray=\"3,3\" opacity=\".7\"\/><!-- [et_pb_line_break_holder] -->      <\/svg><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"hero-inner\" style=\"margin-top:8px\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<div style=\"grid-column:1\/-1\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"hero-search\" role=\"search\"><!-- [et_pb_line_break_holder] -->        <input type=\"search\" id=\"epg-search\" placeholder=\"Recherche de produits \u2014 roue \u00e0 vis sans fin en laiton, acier alli\u00e9 M1.5, engrenage \u00e0 vis sans fin CNC...\" aria-label=\"Rechercher des produits \u00e0 engrenages \u00e0 vis sans fin\" onkeydown=\"if(event.key==='Enter'){event.preventDefault();var q=this.value.trim();if(q){window.location.href='\/?s='+encodeURIComponent(q)+'&#038;post_type=product';}}\"><!-- [et_pb_line_break_holder] -->        <button type=\"button\" id=\"epg-search-btn\" onclick=\"var i=document.getElementById('epg-search');var q=i&#038;&#038;i.value?i.value.trim():'';if(q){window.location.href='\/?s='+encodeURIComponent(q)+'&#038;post_type=product';}else{i&#038;&#038;i.focus();}\">Recherche<\/button><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 02 \u2014 WHAT ARE WORM GEARS<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section id=\"what\" class=\"reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->    <span class=\"num\">02<\/span><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"chapter-tag\">Principes fondamentaux<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Que sont exactement les engrenages \u00e0 vis sans fin ?<\/h2>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee>Un engrenage \u00e0 vis sans fin est une transmission de puissance \u00e0 angle droit o\u00f9 un arbre cylindrique filet\u00e9 (la vis sans fin) entra\u00eene une roue dent\u00e9e dont les dents sont dispos\u00e9es obliquement sur sa circonf\u00e9rence. Chaque tour de la vis sans fin fait avancer la roue d'une dent\u00a0; ainsi, un engrenage \u00e0 vis sans fin \u00e0 un seul pas, associ\u00e9 \u00e0 une roue de 40 dents, offre une r\u00e9duction de 40:1 en un seul \u00e9tage compact. Aucun autre syst\u00e8me d'engrenage \u00e0 arbres parall\u00e8les n'atteint une telle densit\u00e9 de rapports dans un encombrement aussi r\u00e9duit. Les principaux composants d'un engrenage \u00e0 vis sans fin se limitent \u00e0 deux pi\u00e8ces\u00a0: l'arbre de la vis sans fin c\u00f4t\u00e9 entr\u00e9e et la roue dent\u00e9e c\u00f4t\u00e9 sortie.<\/pee><!-- [et_pb_line_break_holder] -->  <pee>Two behaviours set this drive apart. First, the worm can drive the wheel freely, but the wheel \u2014 in most shallow-lead geometries \u2014 cannot back-drive the worm. This self-locking behaviour is what puts these drives inside hoists, lifts, antenna positioners and conveyors where the load must stay put when power is off. Second, the tooth contact is a sliding contact, which is quiet and vibration-damping but also the reason lubrication selection matters more here than for a spur gear. Understanding worms and worm wheels starts with that single observation: sliding contact, not rolling contact, governs everything about the drive&#8217;s behaviour.<\/pee><!-- [et_pb_line_break_holder] -->  <pee>A brief note on terminology. &#8220;Worm drive&#8221; and &#8220;worm gear&#8221; are used interchangeably in engineering practice, while &#8220;worm gearbox&#8221; or &#8220;worm gear reducer&#8221; refers to a complete sealed assembly that includes the worm-and-wheel pair plus housing, bearings and shaft extensions. Our catalogue covers all three categories \u2014 loose components, complete reducers, and motor-ready gearboxes \u2014 so Korean OEMs can buy at whichever level of integration suits their assembly line.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"anatomy\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"anatomy-img\"><!-- [et_pb_line_break_holder] -->      <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/worm-gear-structure-1-1.webp\" alt=\"Structure d&#039;engrenage \u00e0 vis sans fin montrant l&#039;engr\u00e8nement de l&#039;arbre et de la roue dent\u00e9e.\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->      <button class=\"hotspot h1\" data-tip=\"Worm (worm shaft) \u2014 threaded driver\" aria-label=\"Arbre \u00e0 vis sans fin\">1<\/button><!-- [et_pb_line_break_holder] -->      <button class=\"hotspot h2-pt\" data-tip=\"Worm wheel \u2014 driven tooth wheel\" aria-label=\"Roue \u00e0 vis sans fin\">2<\/button><!-- [et_pb_line_break_holder] -->      <button class=\"hotspot h3-pt\" data-tip=\"Lead angle \u2014 governs efficiency\" aria-label=\"Angle d&#039;attaque\">3<\/button><!-- [et_pb_line_break_holder] -->      <button class=\"hotspot h4-pt\" data-tip=\"Contact zone \u2014 sliding engagement\" aria-label=\"Zone de contact\">4<\/button><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<h3 style=\"margin-bottom:10px\">Anatomie en bref<\/h3>\n<p><!-- [et_pb_line_break_holder] -->      <pee style=\"font-size:14.5px;color:var(--c-steel)\">Hover the numbered hotspots on the photo to see the name of each feature. The four callouts cover the elements most frequently misidentified on first-year drawings \u2014 especially the lead angle, which is drawn on the worm but measured as the spiral&#8217;s slope relative to the shaft&#8217;s radial plane.<\/pee><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"selflock\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<h3>La propri\u00e9t\u00e9 \u00e0 verrouillage automatique<\/h3>\n<p><!-- [et_pb_line_break_holder] -->        <pee style=\"font-size:14px;margin:0;color:var(--c-steel)\">Un angle d'attaque faible (inf\u00e9rieur \u00e0 environ 5\u00b0) g\u00e9n\u00e8re un frottement statique suffisamment important pour emp\u00eacher la roue d'entra\u00eener la vis sans fin en sens inverse. Il s'agit d'une mesure de s\u00e9curit\u00e9 pour les ponts \u00e9l\u00e9vateurs et d'un compromis technique pour optimiser le rendement des transmissions\u00a0: il est g\u00e9n\u00e9ralement impossible de combiner les deux.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 03 \u2014 THREE TYPES (horizontal scroll)<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section id=\"types\" class=\"reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->    <span class=\"num\">03<\/span><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"chapter-tag\">Types d'engrenages \u00e0 vis sans fin<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Engrenages \u00e0 vis sans fin sans gorge, \u00e0 gorge simple et \u00e0 double gorge.<\/h2>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px\">Trois g\u00e9om\u00e9tries \u2013 les diff\u00e9rents types d'engrenages \u00e0 vis sans fin les plus couramment utilis\u00e9s \u2013 couvrent la quasi-totalit\u00e9 des transmissions en service aujourd'hui\u00a0: sans gorge, \u00e0 gorge simple et \u00e0 double gorge. Le choix entre elles d\u00e9pend principalement du degr\u00e9 d'enroulement des dents de la roue autour de la vis sans fin\u00a0; un enroulement plus important signifie un plus grand nombre de paires de dents en contact \u00e0 un instant donn\u00e9, ce qui augmente la capacit\u00e9 de charge au prix d'une complexit\u00e9 d'usinage accrue. Une r\u00e8gle g\u00e9n\u00e9rale que nous donnons \u00e0 nos nouveaux clients cor\u00e9ens\u00a0: privil\u00e9giez un engrenage sans gorge pour les transmissions l\u00e9g\u00e8res o\u00f9 le co\u00fbt est un facteur d\u00e9terminant, un engrenage \u00e0 gorge simple pour les applications industrielles (80\u00a0%) et un engrenage \u00e0 double gorge uniquement lorsque la densit\u00e9 de couple est le crit\u00e8re essentiel.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"type-grid\"><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"type-row\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"type-img\"><!-- [et_pb_line_break_holder] -->        <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/non-throat-worm-gear-1.webp\" alt=\"Engrenage \u00e0 vis sans fin sans gorge avec vis sans fin cylindrique et roue dent\u00e9e droite\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"type-text\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"tt-label\">Type 01 \/ G\u00e9om\u00e9trie la plus simple<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<h3>Engrenages \u00e0 vis sans fin sans gorge<\/h3>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"tt-meta\"><span>co\u00fbt le plus bas<\/span><span>Point de contact<\/span><span>1 \u00e0 2 dents engag\u00e9es<\/span><\/div>\n<p><!-- [et_pb_line_break_holder] -->        <pee>Engrenage par vis sans fin cylindrique et roue cylindrique\u00a0: la face de la roue est \u00e0 coupe droite, sans gorge autour de la vis sans fin. Seules une ou deux dents s\u2019engr\u00e8nent simultan\u00e9ment, ce qui explique la plus faible capacit\u00e9 de charge des trois types d\u2019engrenages. En revanche, l\u2019outillage est simple et le remplacement des roues est ais\u00e9.<\/pee><!-- [et_pb_line_break_holder] -->        <span class=\"tt-badge\">Applications typiques\u00a0: indexation l\u00e9g\u00e8re, entra\u00eenements d\u2019instruments, \u00e9lectronique de bureau<\/span><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"type-row\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"type-img\"><!-- [et_pb_line_break_holder] -->        <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/single-throat-worm-gear-1.webp\" alt=\"Engrenage \u00e0 vis sans fin \u00e0 gorge unique avec roue \u00e0 vis sans fin \u00e0 gorge.\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"type-text\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"tt-label\">Type 02 \/ Cheval de trait industriel<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<h3>Engrenages \u00e0 vis sans fin \u00e0 simple gorge<\/h3>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"tt-meta\"><span>Les plus courants<\/span><span>Contact en ligne<\/span><span>3 \u00e0 4 dents engag\u00e9es<\/span><\/div>\n<p><!-- [et_pb_line_break_holder] -->        <pee>La vis sans fin reste cylindrique, mais la roue dent\u00e9e est taill\u00e9e par fraise-m\u00e8re et pr\u00e9sente une gorge concave qui l'enveloppe partiellement. Trois \u00e0 quatre dents sont en prise simultan\u00e9ment\u00a0; le contact se fait par une courte ligne plut\u00f4t que par un point. C'est le type d'engrenage \u00e0 vis sans fin le plus courant dans les r\u00e9ducteurs industriels, les syst\u00e8mes de levage et les applications d'axe en C des machines-outils.<\/pee><!-- [et_pb_line_break_holder] -->        <span class=\"tt-badge\">Exemples typiques\u00a0: r\u00e9ducteurs industriels, entra\u00eenements de levage, axes C CNC<\/span><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"type-row\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"type-img\"><!-- [et_pb_line_break_holder] -->        <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/double-throat-worm-gear-1.webp\" alt=\"Engrenage \u00e0 vis sans fin \u00e0 double gorge avec vis sans fin en forme de sablier et roue dent\u00e9e \u00e0 gorge.\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"type-text\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"tt-label\">Type 03 \/ Capacit\u00e9 maximale<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<h3>Engrenages \u00e0 vis sans fin \u00e0 double gorge (\u00e0 double enveloppe)<\/h3>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"tt-meta\"><span>ver en forme de sablier<\/span><span>Double enveloppe<\/span><span>6 \u00e0 8 dents engag\u00e9es<\/span><\/div>\n<p><!-- [et_pb_line_break_holder] -->        <pee>Both the worm and the wheel are throated \u2014 the worm takes on an hourglass shape that wraps around the wheel&#8217;s teeth. Six to eight teeth engage simultaneously. Load capacity per unit envelope is two to three times a single-throat set. The trade-off: machining demands a specialised hob for each ratio, so lead time and unit cost both rise.<\/pee><!-- [et_pb_line_break_holder] -->        <span class=\"tt-badge\">Applications typiques\u00a0: palans lourds, applications militaires, servomoteurs \u00e0 couple \u00e9lev\u00e9<\/span><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 04 \u2014 HOW WORM GEARS WORK + RATIO CALCULATOR<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section id=\"how\" class=\"reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->    <span class=\"num\">04<\/span><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"chapter-tag\">Principe de fonctionnement<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Comment fonctionnent les engrenages \u00e0 vis sans fin \u2014 \u00e9tape par \u00e9tape.<\/h2>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px\">Le r\u00e9ducteur \u00e0 vis sans fin transforme la rotation d'entr\u00e9e sur l'arbre en une rotation de sortie plus lente, mais \u00e0 couple plus \u00e9lev\u00e9, sur la roue dent\u00e9e. L'angle de 90\u00b0 entre les axes de la vis et de la roue permet \u00e9galement d'inverser le sens de rotation de l'arbre en une seule \u00e9tape. L'explication d\u00e9taill\u00e9e en cinq \u00e9tapes ci-dessous est celle que notre bureau d'\u00e9tudes utilise en atelier lorsqu'un nouveau client cor\u00e9en s'interroge sur le fonctionnement pratique des engrenages \u00e0 vis sans fin.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"work-grid\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<ol class=\"work-steps\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<li data-step=\"01\">\n<h4>Entr\u00e9e au niveau de la vis sans fin<\/h4>\n<pee>Le moteur, le volant ou l'engrenage en amont fait tourner la vis sans fin \u00e0 son r\u00e9gime nominal \u2014 g\u00e9n\u00e9ralement de 500 \u00e0 3000 tr\/min pour les entra\u00eenements industriels.<\/pee><\/li>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<li data-step=\"02\">\n<h4>Le filetage s'engage dans la dent de la roue<\/h4>\n<pee>Chaque rotation de la vis sans fin fait avancer d'une dent la roue dent\u00e9e pour une vis sans fin \u00e0 un seul tour, de deux dents pour une vis sans fin \u00e0 double tour, et ainsi de suite.<\/pee><\/li>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<li data-step=\"03\">\n<h4>Le contact glissant transf\u00e8re la force<\/h4>\n<pee>Le contact entre le flanc de la vis sans fin et la dent de la roue est principalement un glissement, c'est pourquoi une roue \u00e0 vis sans fin n\u00e9cessite une enveloppe de lubrifiant d\u00e9di\u00e9e \u2014 et non la m\u00eame huile qu'un r\u00e9ducteur \u00e0 engrenages droits.<\/pee><\/li>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<li data-step=\"04\">\n<h4>Multiplication du couple \u00e0 la roue<\/h4>\n<pee>Le couple de sortie est approximativement proportionnel au rapport de r\u00e9duction moins les pertes par frottement. Un r\u00e9ducteur 40:1 avec un rendement de 85 % (%) d\u00e9livre 34 fois le couple d'entr\u00e9e \u00e0 la roue.<\/pee><\/li>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<li data-step=\"05\">\n<h4>Le syst\u00e8me autobloquant maintient la charge<\/h4>\n<pee>Lorsque l'alimentation \u00e9lectrique est coup\u00e9e, une vis sans fin \u00e0 faible pas ne peut pas \u00eatre entra\u00een\u00e9e en sens inverse par la charge sur la roue \u2014 l'entra\u00eenement maintient sa position sans frein.<\/pee><\/li>\n<p><!-- [et_pb_line_break_holder] -->    <\/ol>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"work-visual\"><!-- [et_pb_line_break_holder] -->      <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/worm-gear-working-principle-1.webp\" alt=\"Sch\u00e9ma de principe de fonctionnement d&#039;un engrenage \u00e0 vis sans fin illustrant le transfert de mouvement\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <!-- Ratio calculator --><!-- [et_pb_line_break_holder] -->  <\/p>\n<h3 style=\"margin-top:44px;margin-bottom:10px\">Rapport de transmission \u00e0 vis sans fin et calcul<\/h3>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px;margin-bottom:20px\">Le rapport de r\u00e9duction de la vis sans fin est d\u00e9termin\u00e9 par une simple \u00e9quation\u00a0: rapport de r\u00e9duction = nombre de dents de la roue dent\u00e9e \u00f7 nombre de filets de la vis sans fin. Essayez le calculateur en direct ci-dessous\u00a0: modifiez l\u2019une ou l\u2019autre valeur et la r\u00e9duction se met \u00e0 jour instantan\u00e9ment. Les ing\u00e9nieurs l\u2019utilisent souvent pour v\u00e9rifier la coh\u00e9rence d\u2019un devis avant de concevoir le carter.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<figure class=\"ratio-schematic\"><!-- [et_pb_line_break_holder] -->    <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/Gear-ratio-schemetic-1.webp\" alt=\"Sch\u00e9ma de calcul du rapport de transmission d&#039;un engrenage \u00e0 vis sans fin montrant les amorces de la vis sans fin et les dents de la roue dent\u00e9e.\" loading=\"lazy\"><!-- [et_pb_line_break_holder] --><figcaption>Le sch\u00e9ma ci-dessus illustre la relation g\u00e9om\u00e9trique\u00a0: une rotation de la vis sans fin fait avancer la roue d'une dent pour une vis sans fin \u00e0 un seul spire, de deux dents pour une vis sans fin \u00e0 deux spires, et ainsi de suite. La r\u00e9duction est donc simplement \u00e9gale au nombre de dents de la roue divis\u00e9 par le nombre de spires de la vis sans fin. <strong>R\u00e8gle g\u00e9n\u00e9rale :<\/strong> Un nombre plus \u00e9lev\u00e9 de d\u00e9marrages augmente l'efficacit\u00e9 mais r\u00e9duit le rapport \u2014 une vis sans fin \u00e0 4 d\u00e9marrages sur une roue \u00e0 40 dents ne donne que 10:1 mais fonctionne avec une efficacit\u00e9 proche de 90 % ; une vis sans fin \u00e0 1 d\u00e9marrage sur la m\u00eame roue donne 40:1 mais avec une efficacit\u00e9 de 55 \u00e0 70 %.<\/figcaption><!-- [et_pb_line_break_holder] -->  <\/figure>\n<p><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"ratio-calc\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <label>Dents de la roue \u00e0 vis sans fin (Z)<\/label><!-- [et_pb_line_break_holder] -->      <input type=\"number\" id=\"calc-z\" value=\"40\" min=\"10\" max=\"200\" step=\"1\" oninput=\"(function(){var z=parseInt(document.getElementById('calc-z').value,10);var n=parseInt(document.getElementById('calc-n').value,10);if(isNaN(z)||z<1)z=40;if(isNaN(n)||n<1)n=1;document.getElementById('calc-out').textContent=(Math.round(z\/n*100)\/100)+':1';})()\"><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"op\">\u00f7<\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <label>D\u00e9but de ver (n)<\/label><!-- [et_pb_line_break_holder] -->      <input type=\"number\" id=\"calc-n\" value=\"1\" min=\"1\" max=\"8\" step=\"1\" oninput=\"(function(){var z=parseInt(document.getElementById('calc-z').value,10);var n=parseInt(document.getElementById('calc-n').value,10);if(isNaN(z)||z<1)z=40;if(isNaN(n)||n<1)n=1;document.getElementById('calc-out').textContent=(Math.round(z\/n*100)\/100)+':1';})()\"><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"op\">=<\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"result\"><!-- [et_pb_line_break_holder] -->      <label>Rapport de r\u00e9duction<\/label><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"rbox\"><span id=\"calc-out\">40:1<\/span><\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"note\">Formule : i = Z \/ n | Les vers \u00e0 un seul \u00e9tage (n=1) donnent le ratio le plus \u00e9lev\u00e9 par \u00e9tage ; les vers \u00e0 plusieurs \u00e9tages (n=2 \u2013 4) augmentent l'efficacit\u00e9 au d\u00e9triment du ratio<\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 05 \u2014 MAIN COMPONENTS<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section id=\"components\" class=\"reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->    <span class=\"num\">05<\/span><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"chapter-tag\">Anatomie<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Les deux moiti\u00e9s de tout ensemble d'engrenages \u00e0 vis sans fin.<\/h2>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px\">Every drive of this kind, regardless of manufacturer or catalogue size, reduces to two engineered components: the worm (also called worm shaft or drive screw) and the worm wheel (also called worm gear). Getting the pair right is the entire design game \u2014 dimensioning one without the other almost always produces a drive that runs noisily or wears quickly. A hard-earned rule from our engineering desk: specify the wheel first (material, tooth count, accuracy class), then derive the worm geometry from the wheel specification rather than the other way around. This approach keeps the wheel \u2014 the part that wears and gets replaced \u2014 within standard catalogue sizes, which cuts replacement lead time in half over the drive&#8217;s service life.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"comp-grid\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<article class=\"comp-card\"><!-- [et_pb_line_break_holder] -->      <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/worm-thread-starts-1.webp\" alt=\"Arbre \u00e0 vis sans fin montrant le d\u00e9but du filetage et la g\u00e9om\u00e9trie des flancs\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<h3><span class=\"idx\">01<\/span>Le ver (tige du ver)<\/h3>\n<p><!-- [et_pb_line_break_holder] -->        <pee>A cylindrical shaft machined with one, two, three, or four helical threads \u2014 called &#8220;starts&#8221;. The number of starts sets the ratio together with the wheel tooth count. Hardened alloy steel (SCM415, 20CrMnTi) is standard for the shaft because the sliding contact demands a hard flank to avoid scuffing.<\/pee><!-- [et_pb_line_break_holder] -->        <\/p>\n<ul><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Mat\u00e9riel<\/span><strong>SCM415 \/ 20CrMnTi<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Duret\u00e9<\/span><strong>58\u201362 HRC (cas)<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>D\u00e9parts disponibles<\/span><strong>1, 2, 3, 4<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Finition de surface<\/span><strong>Ra 0,4 \u00b5m (sol)<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/ul>\n<p><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/article>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<article class=\"comp-card\"><!-- [et_pb_line_break_holder] -->      <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/worm-gear-set-detail-1.webp\" alt=\"Roue \u00e0 vis sans fin montrant le profil de la dent et la gorge\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<h3><span class=\"idx\">02<\/span>La roue \u00e0 vis sans fin<\/h3>\n<p><!-- [et_pb_line_break_holder] -->        <pee>The driven wheel with oblique teeth that match the worm&#8217;s helix. Bronze is the traditional wheel material because it is softer than the hardened worm \u2014 the softer material absorbs the sliding wear, which keeps the expensive hardened shaft reusable across several wheel replacements. Alloy steel and plastic wheels are also common in niche duty.<\/pee><!-- [et_pb_line_break_holder] -->        <\/p>\n<ul><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Mat\u00e9riel<\/span><strong>Bronze \u00e0 l'\u00e9tain \/ Bronze Al-Fe<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Duret\u00e9<\/span><strong>65\u201390 HB<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>nombre de dents<\/span><strong>Norme Z20 \u2013 Z120<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Niveau de pr\u00e9cision<\/span><strong>DIN 5 \u2013 DIN 7<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/ul>\n<p><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/article>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 06 \u2014 MATERIALS<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section id=\"materials\" class=\"reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->    <span class=\"num\">06<\/span><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"chapter-tag\">s\u00e9lection des mat\u00e9riaux<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>De quels mat\u00e9riaux sont faits les engrenages \u00e0 vis sans fin ?<\/h2>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px\">Cinq familles de mat\u00e9riaux couvrent la quasi-totalit\u00e9 des engrenages \u00e0 vis sans fin en service. La r\u00e8gle d'assemblage suivie par les ing\u00e9nieurs exp\u00e9riment\u00e9s consiste \u00e0 monter un arbre \u00e0 vis sans fin dur sur une roue \u00e0 vis sans fin plus tendre, avec un rapport de duret\u00e9 d'environ 2:1 entre les deux. La roue plus tendre absorbe le frottement de glissement et s'use de mani\u00e8re pr\u00e9f\u00e9rentielle, prot\u00e9geant ainsi l'arbre \u00e0 vis sans fin tremp\u00e9, plus co\u00fbteux, pendant plusieurs cycles de vie de la roue.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"mat-scroll\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<table class=\"mat-table\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<thead>\n<tr>\n<th>Worm &#038; Wheel material<\/th>\n<th>capacit\u00e9 de charge<\/th>\n<th>r\u00e9sistance \u00e0 la corrosion<\/th>\n<th>Meilleure adaptation<\/th>\n<\/tr>\n<\/thead>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<tbody><!-- [et_pb_line_break_holder] -->        <\/p>\n<tr><!-- [et_pb_line_break_holder] -->          <\/p>\n<td><strong>Roue en bronze \u00e0 l'\u00e9tain + vis sans fin en acier alli\u00e9<\/strong><\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\n<div class=\"bar\" style=\"--w:88%\"><span><\/span><\/div>\n<\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\n<div class=\"bar\" style=\"--w:55%\"><span><\/span><\/div>\n<\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>Entra\u00eenements industriels g\u00e9n\u00e9raux, machines-outils<\/td>\n<p><!-- [et_pb_line_break_holder] -->        <\/tr>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<tr><!-- [et_pb_line_break_holder] -->          <\/p>\n<td><strong>Roue en bronze d'aluminium-fer + vis sans fin SCM415<\/strong><\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\n<div class=\"bar\" style=\"--w:100%\"><span><\/span><\/div>\n<\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\n<div class=\"bar\" style=\"--w:60%\"><span><\/span><\/div>\n<\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>Palans, convoyeurs lourds, service 24h\/24 et 7j\/7<\/td>\n<p><!-- [et_pb_line_break_holder] -->        <\/tr>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<tr><!-- [et_pb_line_break_holder] -->          <\/p>\n<td><strong>Roue en acier inoxydable 316 + vis sans fin en acier inoxydable 304<\/strong><\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\n<div class=\"bar\" style=\"--w:60%\"><span><\/span><\/div>\n<\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\n<div class=\"bar\" style=\"--w:100%\"><span><\/span><\/div>\n<\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>Alimentation, produits pharmaceutiques, milieux marins<\/td>\n<p><!-- [et_pb_line_break_holder] -->        <\/tr>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<tr><!-- [et_pb_line_break_holder] -->          <\/p>\n<td><strong>Roue en fonte ductile + vis sans fin en acier 40Cr<\/strong><\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\n<div class=\"bar\" style=\"--w:70%\"><span><\/span><\/div>\n<\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\n<div class=\"bar\" style=\"--w:50%\"><span><\/span><\/div>\n<\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>Entra\u00eenements lourds et lents (ciment, mines)<\/td>\n<p><!-- [et_pb_line_break_holder] -->        <\/tr>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<tr><!-- [et_pb_line_break_holder] -->          <\/p>\n<td><strong>Roue en nylon PA66 + vis sans fin en POM<\/strong><\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\n<div class=\"bar\" style=\"--w:30%\"><span><\/span><\/div>\n<\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\n<div class=\"bar\" style=\"--w:75%\"><span><\/span><\/div>\n<\/td>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<td>\u00c9lectronique de bureau, micro-instruments<\/td>\n<p><!-- [et_pb_line_break_holder] -->        <\/tr>\n<p><!-- [et_pb_line_break_holder] -->      <\/tbody>\n<p><!-- [et_pb_line_break_holder] -->    <\/table>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee class=\"mat-legend\">La longueur des barres repr\u00e9sente un score relatif par rapport \u00e0 l'option la plus performante de la m\u00eame colonne ; il ne s'agit pas de valeurs d'ing\u00e9nierie absolues.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"mat-foot\"><!-- [et_pb_line_break_holder] -->    <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/Worms-and-worm-wheels-made-of-different-materials-1.webp\" alt=\"Vis sans fin et roues \u00e0 vis sans fin fabriqu\u00e9es en diff\u00e9rents mat\u00e9riaux\u00a0: bronze, acier alli\u00e9, acier inoxydable, plastique\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->    <pee>Chaque engrenage \u00e0 vis sans fin de notre catalogue est disponible en standard dans au moins trois de ces combinaisons de mat\u00e9riaux. Les combinaisons sur mesure, hors liste, font l'objet d'un devis personnalis\u00e9 apr\u00e8s \u00e9tude technique. Pour les productions en grande s\u00e9rie, notre bureau d'\u00e9tudes m\u00e9tallurgiques peut \u00e9galement se procurer des alliages de bronze sur mesure aupr\u00e8s de fonderies cor\u00e9ennes et japonaises lorsque le cahier des charges exige des nuances non standard.<\/pee><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 07 \u2014 MOUNTING METHODS<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section id=\"mounting\" class=\"reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->    <span class=\"num\">07<\/span><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"chapter-tag\">Montage<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>M\u00e9thodes de montage des engrenages \u00e0 vis sans fin\u00a0: rainure de clavette, vis de blocage, fente.<\/h2>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px\">Une roue \u00e0 vis sans fin peut \u00eatre fix\u00e9e \u00e0 son arbre par l'une des trois m\u00e9thodes de montage standard suivantes\u00a0: rainure de clavette, vis de blocage ou moyeu fendu. Le choix d\u00e9pend principalement du couple transmis, de l'accessibilit\u00e9 lors de l'assemblage et de la fr\u00e9quence de d\u00e9montage de la roue en service. Les ing\u00e9nieurs tranchent g\u00e9n\u00e9ralement la question du montage apr\u00e8s avoir s\u00e9lectionn\u00e9 les mat\u00e9riaux\u00a0; chacune des trois m\u00e9thodes d\u00e9crites ci-dessous r\u00e9pond \u00e0 une combinaison diff\u00e9rente de charge et de facilit\u00e9 d'entretien.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"mount-wrap\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"mount-card\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"diag\"><!-- [et_pb_line_break_holder] -->        <svg viewbox=\"0 0 120 80\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><rect x=\"10\" y=\"28\" width=\"100\" height=\"24\" rx=\"2\" fill=\"#06B6D4\" stroke=\"#0A2540\" stroke-width=\"2\"\/><rect x=\"54\" y=\"22\" width=\"12\" height=\"36\" fill=\"#F59E0B\" stroke=\"#0A2540\" stroke-width=\"2\"\/><\/svg><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h3>Keyway<\/h3>\n<p><!-- [et_pb_line_break_holder] -->      <pee>Une rainure rectangulaire usin\u00e9e dans l'arbre et l'al\u00e9sage de la roue re\u00e7oit une clavette en acier adapt\u00e9e. Cette clavette transmet tout le couple par cisaillement, sans aucun frottement entre l'al\u00e9sage et l'arbre. Il s'agit de la m\u00e9thode de montage offrant le couple le plus \u00e9lev\u00e9 et la meilleure r\u00e9sistance aux variations de temp\u00e9rature. Son principal inconv\u00e9nient\u00a0: le d\u00e9montage d'une roue clavet\u00e9e apr\u00e8s des ann\u00e9es d'utilisation peut s'av\u00e9rer difficile si l'al\u00e9sage est corrod\u00e9 sur l'arbre.<\/pee><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"use\">CHARGE : \u00e9lev\u00e9e | RETRAIT : fr\u00e9quent<\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"mount-card\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"diag\"><!-- [et_pb_line_break_holder] -->        <svg viewbox=\"0 0 120 80\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><rect x=\"10\" y=\"28\" width=\"100\" height=\"24\" rx=\"2\" fill=\"#06B6D4\" stroke=\"#0A2540\" stroke-width=\"2\"\/><circle cx=\"60\" cy=\"18\" r=\"6\" fill=\"#F59E0B\" stroke=\"#0A2540\" stroke-width=\"2\"\/><line x1=\"60\" y1=\"24\" x2=\"60\" y2=\"40\" stroke=\"#0A2540\" stroke-width=\"3\"\/><\/svg><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h3>vis de r\u00e9glage<\/h3>\n<p><!-- [et_pb_line_break_holder] -->      <pee>Une vis \u00e0 filetage traversant le moyeu de la roue exerce une pression sur une surface plane usin\u00e9e dans l'arbre. Le couple est transmis par friction et par l'empreinte de la vis sur la surface plane. Cette m\u00e9thode est \u00e9conomique et rapide \u00e0 mettre en \u0153uvre, et le moyeu ne n\u00e9cessite pas d'usinage co\u00fbteux de rainure de clavette\u00a0; c'est pourquoi elle est largement utilis\u00e9e dans les syst\u00e8mes \u00e0 vis sans fin pour petits entra\u00eenements.<\/pee><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"use\">CHARGE : faible \u00e0 moyenne | RETRAIT : occasionnel<\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"mount-card\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"diag\"><!-- [et_pb_line_break_holder] -->        <svg viewbox=\"0 0 120 80\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><rect x=\"10\" y=\"28\" width=\"100\" height=\"24\" rx=\"2\" fill=\"#06B6D4\" stroke=\"#0A2540\" stroke-width=\"2\"\/><rect x=\"45\" y=\"22\" width=\"30\" height=\"36\" fill=\"none\" stroke=\"#F59E0B\" stroke-width=\"2\" stroke-dasharray=\"3,2\"\/><line x1=\"60\" y1=\"22\" x2=\"60\" y2=\"58\" stroke=\"#F59E0B\" stroke-width=\"2\"\/><\/svg><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h3>moyeu fendu (collier)<\/h3>\n<p><!-- [et_pb_line_break_holder] -->      <pee>Le moyeu de la roue est fendu radialement et fix\u00e9 autour de l'arbre par deux ou quatre boulons de serrage. Aucun usinage de l'arbre n'est n\u00e9cessaire\u00a0: la roue se positionne uniquement par friction. Le repositionnement est ais\u00e9, ce qui fait du montage \u00e0 moyeu fendu la solution privil\u00e9gi\u00e9e pour les prototypes et les machines produites en petite s\u00e9rie, o\u00f9 la conception est susceptible d'\u00e9voluer. La force de serrage requise implique un diam\u00e8tre de moyeu plus important\u00a0; le montage \u00e0 moyeu fendu n'est donc pas toujours la solution id\u00e9ale dans les espaces restreints.<\/pee><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"use\">CHARGE : moyenne | SUPPRESSION : tr\u00e8s fr\u00e9quente<\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"mount-banner\"><!-- [et_pb_line_break_holder] -->    <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/worm-gear-mounting-method-1.webp\" alt=\"Comparaison des m\u00e9thodes de montage des engrenages \u00e0 vis sans fin\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 07B \u2014 WHY EVER-POWER (factory + capability)<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section id=\"why\" class=\"reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->    <span class=\"num\">7\u00b7B<\/span><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"chapter-tag\">Aper\u00e7u des fonctionnalit\u00e9s<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Pourquoi les \u00e9quipementiers cor\u00e9ens font transiter leurs commandes d'engrenages \u00e0 vis sans fin par Ansan.<\/h2>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px\">Korea Ever-Power Worm And Worm Wheel Co., Ltd exploite une ligne de production d\u00e9di\u00e9e aux engrenages \u00e0 vis sans fin et aux roues dent\u00e9es dans la zone industrielle d'Ansan. Cette usine est sp\u00e9cialis\u00e9e \u2013 elle ne produit ni engrenages droits ni h\u00e9lico\u00efdaux \u2013 ce qui permet de maintenir un haut niveau d'expertise et de r\u00e9duire les d\u00e9lais de production entre les diff\u00e9rentes tailles disponibles. Quatre \u00e9l\u00e9ments distinguent l'usine d'Ansan des grands fournisseurs japonais de premier rang auxquels les acheteurs cor\u00e9ens se r\u00e9f\u00e8rent g\u00e9n\u00e9ralement.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"why-wrap\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"why-cards\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"why-card\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"mono\" style=\"color:var(--c-amber);font-size:11px;letter-spacing:.12em;margin-bottom:6px\">01 \/ D\u00c9LAI DE PR\u00c9PARATION<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <strong style=\"display:block;font-size:20px;color:var(--c-deep);line-height:1.3\">norme de 25 jours<\/strong><!-- [et_pb_line_break_holder] -->        <pee>Les articles du catalogue sont exp\u00e9di\u00e9s sous 25 jours ouvrables, soit 60 jours de moins que la moyenne japonaise de 8 semaines pour les produits \u00e9quivalents.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"why-card\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"mono\" style=\"color:var(--c-amber);font-size:11px;letter-spacing:.12em;margin-bottom:6px\">02 \/ POLITIQUE DE QUANTIT\u00c9 MINIMALE DE COMMANDE<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <strong style=\"display:block;font-size:20px;color:var(--c-deep);line-height:1.3\">Quantit\u00e9 minimale de commande (MOQ) : deux pi\u00e8ces<\/strong><!-- [et_pb_line_break_holder] -->        <pee>Lots de prototypes \u00e0 partir de 2 pi\u00e8ces, s\u00e9ries de production \u00e0 partir de 10 \u2014 utile lorsque le client est encore en phase d'it\u00e9ration sur un mod\u00e8le.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"why-card\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"mono\" style=\"color:var(--c-amber);font-size:11px;letter-spacing:.12em;margin-bottom:6px\">03 \/ CLASSE DE PR\u00c9CISION<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <strong style=\"display:block;font-size:20px;color:var(--c-deep);line-height:1.3\">DIN 5 \u2013 DIN 7<\/strong><!-- [et_pb_line_break_holder] -->        <pee>Gamme compl\u00e8te fabriqu\u00e9e en interne\u00a0; rectification sur table rotative DIN 5 apr\u00e8s traitement thermique sur rectifieuse de profils Reishauer<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"why-card\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"mono\" style=\"color:var(--c-amber);font-size:11px;letter-spacing:.12em;margin-bottom:6px\">04 \/ SUPPORT<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <strong style=\"display:block;font-size:20px;color:var(--c-deep);line-height:1.3\">Bureau de S\u00e9oul \u00b7 Cor\u00e9en<\/strong><!-- [et_pb_line_break_holder] -->        <pee>R\u00e9daction de devis et d'avis en cor\u00e9en sous 24 heures ouvrables\u00a0; prise en charge du japonais et de l'anglais \u00e9galement.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"why-image\"><!-- [et_pb_line_break_holder] -->      <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/ever-power-workshop-3.webp\" alt=\"Usine de production d&#039;engrenages \u00e0 vis sans fin Ever-Power \u00e0 Ansan, en Cor\u00e9e.\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"font-size:14.5px;color:var(--c-steel);margin:28px 0 0;max-width:960px\">Ever-Power est enregistr\u00e9e sous le nom de Korea Ever-Power Worm And Worm Wheel Co., Ltd et situ\u00e9e \u00e0 Sandan-ro, Danwon-gu, Ansan-si, Gyeonggi-do. L'atelier de production est certifi\u00e9 ISO 9001:2015 et ses proc\u00e9dures sont conformes \u00e0 la norme IATF 16949 pour les programmes destin\u00e9s aux \u00e9quipementiers automobiles de rang 1. Pour toute question, veuillez contacter le service technique \u00e0 l'adresse sales@worm-and-worm-wheel.com. Les plans sont soumis \u00e0 un accord de confidentialit\u00e9 avant l'envoi de tout devis.<\/pee><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 08 \u2014 PRODUCT CATALOGUE (merged categories + featured products)<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section id=\"catalogue\" class=\"reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->    <span class=\"num\">08<\/span><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"chapter-tag\">Consultez le catalogue<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Produits \u00e0 engrenages \u00e0 vis sans fin en vedette.<\/h2>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px\">Six produits phares d'engrenages \u00e0 vis sans fin, pr\u00e9sent\u00e9s ci-dessous, couvrent les cat\u00e9gories les plus exp\u00e9di\u00e9es de la gamme Ansan\u00a0: acier inoxydable pour CNC, acier alli\u00e9 pour l'automobile, duplex pour une pr\u00e9cision sans jeu, cylindrique pour l'industrie g\u00e9n\u00e9rale, laiton pour les micro-applications et plastique pour les entra\u00eenements d'instruments. Chaque fiche donne acc\u00e8s \u00e0 la page produit compl\u00e8te, qui comprend un tableau des param\u00e8tres, les options de mat\u00e9riaux et les informations de contact.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"prod-grid\" id=\"prod-grid\"><!-- [et_pb_line_break_holder] -->    <a class=\"prod-card\" href=\"https:\/\/worm-and-worm-wheel.com\/fr\/produit\/stainless-steel-worm-gear-for-cnc-machinery-din-5-scm415\/\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"img\"><img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/Stainless-Steel-Worm-Gear-1.webp\" alt=\"Engrenage \u00e0 vis sans fin en acier inoxydable pour machines CNC\" loading=\"lazy\"><\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\">\n<h4>engrenage \u00e0 vis sans fin en acier inoxydable<\/h4>\n<div class=\"cat-pill\">CNC \u00b7 Acier inoxydable<\/div>\n<pee class=\"prod-desc\">Pr\u00e9cision DIN 5 \u2013 DIN 7 pour les plateaux rotatifs CNC et les entra\u00eenements d'axe C de machines-outils. Acier inoxydable 304\/316 pour environnements corrosifs.<\/pee><\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/a><!-- [et_pb_line_break_holder] -->    <a class=\"prod-card\" href=\"https:\/\/worm-and-worm-wheel.com\/fr\/produit\/alloy-steel-worm-and-worm-gear-for-auto-parts-o5-o120-module-0-2-2-2\/\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"img\"><img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/Alloy-Steel-Worm-and-Worm-Gear-1.webp\" alt=\"Vis sans fin et engrenage \u00e0 vis sans fin en acier alli\u00e9 pour pi\u00e8ces automobiles\" loading=\"lazy\"><\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\">\n<h4>Alloy Steel Worm &#038; Gear<\/h4>\n<div class=\"cat-pill\">Automobile \u00b7 Alliage<\/div>\n<pee class=\"prod-desc\">SCM415 \/ 20CrMnTi carburised &#038; ground for EPS, EPB, and seat-actuator programmes. IATF 16949-aligned.<\/pee><\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/a><!-- [et_pb_line_break_holder] -->    <a class=\"prod-card\" href=\"https:\/\/worm-and-worm-wheel.com\/fr\/produit\/duplex-worm-gear-set-dual-lead-zero-backlash-worm-drive\/\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"img\"><img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/Duplex-Worm-Gear-Set-1.webp\" alt=\"Ensemble d&#039;engrenages \u00e0 vis sans fin duplex pour entra\u00eenements sans jeu\" loading=\"lazy\"><\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\">\n<h4>Ensemble d'engrenages \u00e0 vis sans fin duplex<\/h4>\n<div class=\"cat-pill\">Aucun retour de b\u00e2ton<\/div>\n<pee class=\"prod-desc\">La vis sans fin \u00e0 d\u00e9calage axial avec \u00e9paisseur de dent variable \u00e9limine le jeu de 30 \u00e0 40 % par rapport aux jeux de catalogue standard %.<\/pee><\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/a><!-- [et_pb_line_break_holder] -->    <a class=\"prod-card\" href=\"https:\/\/worm-and-worm-wheel.com\/fr\/produit\/cylindrical-worm-wheel-sets-line-contact-worm-gearing\/\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"img\"><img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/Cylindrical-Worm-Wheel-Sets-1.webp\" alt=\"Ensembles de roues \u00e0 vis sans fin cylindriques\" loading=\"lazy\"><\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\">\n<h4>Roue \u00e0 vis sans fin cylindrique<\/h4>\n<div class=\"cat-pill\">Contact en ligne<\/div>\n<pee class=\"prod-desc\">Paire cylindrique \u00e0 gorge unique, le cheval de bataille industriel \u2014 bronze sur acier pour 80 % d'applications d'entra\u00eenement g\u00e9n\u00e9rales.<\/pee><\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/a><!-- [et_pb_line_break_holder] -->    <a class=\"prod-card\" href=\"https:\/\/worm-and-worm-wheel.com\/fr\/produit\/brass-worm-wheel-shaft-set-20-tooth-m0-5-micro-gear-kit\/\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"img\"><img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/Brass-Worm-Wheel-Shaft-Set-1.webp\" alt=\"Ensemble roue \u00e0 vis sans fin et arbre en laiton\" loading=\"lazy\"><\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\">\n<h4>Brass Worm Wheel &#038; Shaft<\/h4>\n<div class=\"cat-pill\">Micro \u00b7 M0.5<\/div>\n<pee class=\"prod-desc\">Roue en laiton micro-module avec arbre \u00e0 vis sans fin en acier assorti pour entra\u00eenements d'instruments, \u00e9lectronique de bureau et dispositifs m\u00e9dicaux.<\/pee><\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/a><!-- [et_pb_line_break_holder] -->    <a class=\"prod-card\" href=\"https:\/\/worm-and-worm-wheel.com\/fr\/produit\/plastic-worm-gears-for-micro-drives-pom-nylon-gear-sets\/\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"img\"><img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/Plastic-Worm-Gears-1.webp\" alt=\"Engrenages \u00e0 vis sans fin en plastique POM PA66\" loading=\"lazy\"><\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\">\n<h4>Engrenages \u00e0 vis sans fin en plastique<\/h4>\n<div class=\"cat-pill\">POM \u00b7 PA66<\/div>\n<pee class=\"prod-desc\">Roues en POM et PA66 de qualit\u00e9 technique pour des applications silencieuses et \u00e0 faible charge \u2014 \u00e9quipements de bureau, jouets, biens de consommation.<\/pee><\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/a><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"text-align:center;margin-top:26px;margin-bottom:0\"><a href=\"https:\/\/worm-and-worm-wheel.com\/fr\/categorie-produit\/worm-and-worm-wheel\/\" class=\"cta outline\" style=\"background:transparent;color:var(--c-deep);border:1.5px solid var(--c-deep)\">Voir le catalogue complet \u2192<\/a><\/pee><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 10 \u2014 APPLICATIONS (dark bg)<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section class=\"app-section reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"app-inner\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->      <span class=\"num\">10<\/span><!-- [et_pb_line_break_holder] -->      <\/p>\n<div><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"chapter-tag\">Applications<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<h2>L\u00e0 o\u00f9 les engrenages \u00e0 vis sans fin font leurs preuves.<\/h2>\n<p><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"app-intro\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"app-intro-text\"><!-- [et_pb_line_break_holder] -->        <pee>Les applications courantes des engrenages \u00e0 vis sans fin sont omnipr\u00e9sentes dans l'industrie\u00a0: partout o\u00f9 une conception exige une forte r\u00e9duction dans un encombrement r\u00e9duit, un fonctionnement silencieux ou la capacit\u00e9 de supporter une charge sans frein. Les quatre secteurs d'activit\u00e9 pr\u00e9sent\u00e9s ci-dessous repr\u00e9sentent environ 70\u00a0tonnes (%) des r\u00e9ducteurs que nous exp\u00e9dions chaque trimestre depuis Ansan. Outre ces quatre secteurs, nous fournissons \u00e9galement r\u00e9guli\u00e8rement des \u00e9quipements d'imagerie m\u00e9dicale, des syst\u00e8mes d'\u00e9clairage de th\u00e9\u00e2tre, des syst\u00e8mes d'orientation (lacet et tangage) pour \u00e9oliennes, des actionneurs pour suiveurs solaires et des t\u00eates panoramiques\/inclinables pour la diffusion professionnelle\u00a0\u2014 autant d'applications o\u00f9 la combinaison d'un rapport de r\u00e9duction \u00e9lev\u00e9, d'un fonctionnement silencieux et d'une capacit\u00e9 d'autoblocage est in\u00e9gal\u00e9e par les autres r\u00e9ducteurs.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"app-intro-image\"><!-- [et_pb_line_break_holder] -->        <img decoding=\"async\" src=\"https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/worm-and-worm-wheel-application-1.webp\" alt=\"Applications des engrenages \u00e0 vis sans fin dans les secteurs de l&#039;automobile, des machines-outils, des palans, des convoyeurs et de l&#039;emballage\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"app-text-grid\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"app-text-card\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"atc-head\">01 \/ Automotive &#038; EV<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <pee>Direction assist\u00e9e \u00e9lectrique, moteurs d'inclinaison des si\u00e8ges, entra\u00eenements d'essuie-glaces, actionneurs de frein de stationnement \u2014 la paire 20CrMnTi sur bronze domine ici, g\u00e9n\u00e9ralement de pr\u00e9cision DIN 6 avec documentation IATF 16949.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"app-text-card\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"atc-head\">02 \/ Machines-outils<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <pee>Tables rotatives 5 axes, magasins ATC, entra\u00eenements d'axe C sur tours CNC\u00a0: pr\u00e9cision DIN 5 \u00e0 DIN 7 selon la position. Les dents rectifi\u00e9es de la roue sont standard pour les plateaux rotatifs.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"app-text-card\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"atc-head\">03 \/ Hoists &#038; lifts<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <pee>Les r\u00e9ducteurs \u00e0 vis sans fin autobloquants maintiennent la charge en cas de coupure de courant, \u00e9liminant ainsi le frein s\u00e9par\u00e9 n\u00e9cessaire \u00e0 un r\u00e9ducteur \u00e0 engrenages h\u00e9lico\u00efdaux. Leur caract\u00e9ristique principale r\u00e9side dans leur vis sans fin \u00e0 un seul pas et \u00e0 angle d'h\u00e9lice inf\u00e9rieur \u00e0 5\u00b0.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"app-text-card\"><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"atc-head\">04 \/ Conveyors &#038; packaging<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <pee>Gr\u00e2ce \u00e0 leur faible vitesse de rotation et \u00e0 leur fonctionnement silencieux, les engrenages \u00e0 vis sans fin sont la solution de choix pour les lignes de conditionnement et les convoyeurs alimentaires. L'acier inoxydable est privil\u00e9gi\u00e9 pour sa compatibilit\u00e9 avec les syst\u00e8mes de nettoyage \u00e0 haute pression.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 11 \u2014 ADVANTAGES, LIMITATIONS, LUBRICATION<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section id=\"tradeoffs\" class=\"reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->    <span class=\"num\">11<\/span><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"chapter-tag\">l'honn\u00eatet\u00e9 en ing\u00e9nierie<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Avantages, limites et lubrification.<\/h2>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px\">Every gear family carries trade-offs. These drives are excellent at some jobs and genuinely the wrong choice at others. The honest balance sheet below is what our engineering desk walks Korean designers through during the first specification call. We recommend working through both columns before committing to a design \u2014 half the applications that start the enquiry as &#8220;we need a worm gear&#8221; end up better served by a helical or planetary stage, and saying so costs us a sale in the short term but builds the kind of trust that generates five repeat orders over the next three years.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"adv-grid\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"adv-col pros\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<h3>Avantages des engrenages \u00e0 vis sans fin<\/h3>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<ul><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>R\u00e9duction importante en une seule \u00e9tape.<\/strong> De 20:1 \u00e0 300:1 sans empiler les \u00e9tages plan\u00e9taires.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Fonction d'autoverrouillage.<\/strong> Maintient la charge sans frein s\u00e9par\u00e9 lorsque l'angle d'attaque est inf\u00e9rieur \u00e0 environ 5\u00b0.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Agencement d'arbre \u00e0 90\u00b0.<\/strong> Change de direction et r\u00e9duit la vitesse au sein du m\u00eame composant.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Silencieux et fluide.<\/strong> Le contact glissant produit moins de bruit que toute autre solution \u00e0 arbres parall\u00e8les.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Absorption des chocs.<\/strong> L'interface coulissante fait office d'amortisseur contre les pics de couple cycliques.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Enveloppe compacte.<\/strong> Le rapport densit\u00e9\/volume est le plus \u00e9lev\u00e9 de toutes les familles d'engrenages.<\/li>\n<p><!-- [et_pb_line_break_holder] -->      <\/ul>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"adv-col cons\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<h3>Limites des engrenages \u00e0 vis sans fin<\/h3>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<ul><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Efficacit\u00e9 r\u00e9duite.<\/strong> Le contact glissant perd 10 \u00e0 50 % selon le rapport et la lubrification \u2014 bien plus qu'un \u00e9peron ou une h\u00e9lice.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>G\u00e9n\u00e9ration de chaleur.<\/strong> Le m\u00eame glissement qui assure un fonctionnement silencieux produit \u00e9galement de la chaleur qui doit \u00eatre \u00e9vacu\u00e9e par l'huile.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Non r\u00e9versible (par conception).<\/strong> Le verrouillage automatique est une fonctionnalit\u00e9, mais cela signifie que la roue ne peut pas entra\u00eener la vis sans fin dans un jeu \u00e0 faible pas.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Sensible aux lubrifiants.<\/strong> Les entra\u00eenements \u00e0 vis sans fin n\u00e9cessitent des huiles pour engrenages sp\u00e9cifiques \u2014 l'huile synth\u00e9tique ISO VG 220 ou 460 est typique ; l'huile hydraulique standard ne suffit pas.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>L'usure des jantes est le facteur limitant leur dur\u00e9e de vie.<\/strong> The softer bronze wheel wears preferentially \u2014 expect to replace the wheel once or twice over the worm shaft&#8217;s life.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Co\u00fbt unitaire par Nm.<\/strong> Pour un m\u00eame couple de sortie, un \u00e9tage h\u00e9lico\u00efdal est g\u00e9n\u00e9ralement 15 \u00e0 30 fois moins cher qu'un entra\u00eenement \u00e0 vis sans fin.<\/li>\n<p><!-- [et_pb_line_break_holder] -->      <\/ul>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"lube\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<h3>Lubrification des engrenages \u00e0 vis sans fin en un coup d'\u0153il<\/h3>\n<p><!-- [et_pb_line_break_holder] -->    <pee style=\"font-size:14.5px;color:var(--c-steel);max-width:780px\">Le choix de la lubrification des engrenages \u00e0 vis sans fin d\u00e9pend de la temp\u00e9rature du carter, de la vitesse de rotation de la vis sans fin et de la charge. Le tableau ci-dessous indique la classe ISO VG g\u00e9n\u00e9ralement recommand\u00e9e par notre bureau d'\u00e9tudes pour chaque combinaison\u00a0; il s'agit d'un point de d\u00e9part et non d'une sp\u00e9cification finale. Les entra\u00eenements fonctionnant en dehors de ces conditions, ou ceux pr\u00e9sentant des cycles de service inhabituels, n\u00e9cessitent une analyse de lubrification sp\u00e9cifique avant le premier remplissage. Le choix de la classe de viscosit\u00e9 appropri\u00e9e est le facteur le plus d\u00e9terminant pour la dur\u00e9e de vie de tout engrenage \u00e0 vis sans fin\u00a0: une diff\u00e9rence de deux classes diff\u00e9rentes peut r\u00e9duire de moiti\u00e9 la dur\u00e9e de vie pr\u00e9vue des roulements et des flancs.<\/pee><!-- [et_pb_line_break_holder] -->    <\/p>\n<table class=\"lube-table\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<thead>\n<tr>\n<th>temp\u00e9rature du puisard<\/th>\n<th>Faible charge (\u226430 %)<\/th>\n<th>Charge moyenne<\/th>\n<th>Charge lourde (\u226580 %)<\/th>\n<\/tr>\n<\/thead>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<tbody><!-- [et_pb_line_break_holder] -->        <\/p>\n<tr>\n<td>En dessous de 40 \u00b0C<\/td>\n<td class=\"vg\">ISO VG 150<\/td>\n<td class=\"vg\">ISO VG 220<\/td>\n<td class=\"vg\">ISO VG 320<\/td>\n<\/tr>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<tr>\n<td>40 \u2013 70 \u00b0C<\/td>\n<td class=\"vg\">ISO VG 220<\/td>\n<td class=\"vg\">ISO VG 320<\/td>\n<td class=\"vg\">ISO VG 460<\/td>\n<\/tr>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<tr>\n<td>70 \u2013 90 \u00b0C<\/td>\n<td class=\"vg\">ISO VG 320<\/td>\n<td class=\"vg\">ISO VG 460<\/td>\n<td class=\"vg\">Synth\u00e9tiseur ISO VG 680<\/td>\n<\/tr>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<tr>\n<td>Au-dessus de 90 \u00b0C<\/td>\n<td class=\"vg\">Synth\u00e9tiseur ISO VG 460<\/td>\n<td class=\"vg\">Synth\u00e9tiseur ISO VG 680<\/td>\n<td class=\"vg\">Refroidissement forc\u00e9<\/td>\n<\/tr>\n<p><!-- [et_pb_line_break_holder] -->      <\/tbody>\n<p><!-- [et_pb_line_break_holder] -->    <\/table>\n<p><!-- [et_pb_line_break_holder] -->    <pee style=\"font-size:13px;color:var(--c-steel);margin-top:12px;margin-bottom:0\">Les huiles synth\u00e9tiques \u00e0 base de polyalphaol\u00e9fine (PAO) ou de polyglycol (PAG) sont recommand\u00e9es pour les temp\u00e9ratures de carter sup\u00e9rieures \u00e0 70 \u00b0C, car les huiles min\u00e9rales s'oxydent trop rapidement dans cette plage. Les huiles \u00e0 base de polyglycol offrent un coefficient de frottement l\u00e9g\u00e8rement inf\u00e9rieur et peuvent prolonger la dur\u00e9e de vie de 30 \u00e0 50 % \u00e0 haute temp\u00e9rature, mais elles ne sont pas compatibles avec tous les mat\u00e9riaux d'\u00e9tanch\u00e9it\u00e9. Consultez notre bureau d'\u00e9tudes avant d'utiliser des huiles PAG dans une transmission initialement con\u00e7ue pour l'huile min\u00e9rale.<\/pee><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/p>\n<div style=\"margin-top:28px;padding:24px 28px;background:#fff;border:1px dashed var(--c-line);border-radius:10px\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<h3 style=\"font-size:17px;margin-bottom:10px;display:flex;align-items:center;gap:10px\"><span style=\"color:#EF4444;font-size:22px\">\u26a0<\/span>Trois modes de d\u00e9faillance courants \u00e0 surveiller<\/h3>\n<p><!-- [et_pb_line_break_holder] -->    <pee style=\"font-size:14px;color:var(--c-steel);margin-bottom:14px\">Comprendre les causes des pannes de ces variateurs est essentiel pour concevoir un mod\u00e8le durable. Les trois modes de d\u00e9faillance d\u00e9crits ci-dessous repr\u00e9sentent environ 85 % des retours sous garantie de notre client\u00e8le cor\u00e9enne. Leur d\u00e9tection pr\u00e9coce permet \u00e0 l'\u00e9quipe de maintenance de planifier un remplacement programm\u00e9 plut\u00f4t qu'une intervention d'urgence entra\u00eenant l'arr\u00eat de la production.<\/pee><!-- [et_pb_line_break_holder] -->    <\/p>\n<div class=\"fail-grid\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"fail-card\"><!-- [et_pb_line_break_holder] -->        <strong>Piq\u00fbres sur le flanc de la roue<\/strong><!-- [et_pb_line_break_holder] -->        <pee>Petites piq\u00fbres superficielles dues aux contraintes de contact r\u00e9p\u00e9t\u00e9es. Ph\u00e9nom\u00e8ne normal sur une longue dur\u00e9e de vie\u00a0; si elles apparaissent pr\u00e9matur\u00e9ment, le moteur est surcharg\u00e9 ou le film lubrifiant est trop mince.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"fail-card\"><!-- [et_pb_line_break_holder] -->        <strong>Incision des surfaces dentaires<\/strong><!-- [et_pb_line_break_holder] -->        <pee>Marques longitudinales dues \u00e0 un contact momentan\u00e9 m\u00e9tal-m\u00e9tal. Caus\u00e9es par un manque de lubrifiant, une viscosit\u00e9 inadapt\u00e9e ou une contamination.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"fail-card\"><!-- [et_pb_line_break_holder] -->        <strong>Fracture dentaire \u00e0 la racine<\/strong><!-- [et_pb_line_break_holder] -->        <pee>D\u00e9faillance catastrophique soudaine. Caus\u00e9e par une surcharge due \u00e0 un choc ou par la fatigue apr\u00e8s un fonctionnement prolong\u00e9 hors des limites de service dimensionn\u00e9es.<\/pee><!-- [et_pb_line_break_holder] -->      <\/div>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550<!-- [et_pb_line_break_holder] -->     CHAPTER 12 \u2014 SELECTION GUIDE + FAQ<!-- [et_pb_line_break_holder] -->     \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 &#8211;><!-- [et_pb_line_break_holder] --><\/p>\n<section id=\"guide\" class=\"reveal\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"sec-head\"><!-- [et_pb_line_break_holder] -->    <span class=\"num\">12<\/span><!-- [et_pb_line_break_holder] -->    <\/p>\n<div><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"chapter-tag\">Selection guide &#038; FAQ<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Comment choisir la bonne vis sans fin \u2014 en sept questions.<\/h2>\n<p><!-- [et_pb_line_break_holder] -->    <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px\">Les sept questions ci-dessous couvrent toutes les informations n\u00e9cessaires \u00e0 notre bureau d'\u00e9tudes pour \u00e9tablir un devis pour un r\u00e9ducteur \u00e0 vis sans fin. Veuillez y r\u00e9pondre avant l'envoi du premier courriel\u00a0; cela permet g\u00e9n\u00e9ralement de r\u00e9duire le d\u00e9lai de devis de quatre jours \u00e0 moins d'un jour.<\/pee><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"guide\"><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q1\">Quels sont le r\u00e9gime moteur en entr\u00e9e et le couple de sortie que le variateur doit fournir\u00a0?<\/summary>\n<div class=\"ans\">Commencez par le cas de fonctionnement le plus d\u00e9favorable\u00a0: le couple maximal \u00e0 la roue et le r\u00e9gime d'entr\u00e9e continu maximal \u00e0 la vis sans fin. Ces deux valeurs sont essentielles pour dimensionner le variateur avant toute autre consid\u00e9ration. Si le variateur subit des pics intermittents sup\u00e9rieurs \u00e0 son couple nominal continu, tenez \u00e9galement compte du rapport cyclique (par exemple, 30\u00a0s % activ\u00e9, 70\u00a0s % d\u00e9sactiv\u00e9). Un variateur dimensionn\u00e9 pour le couple maximal continu sera souvent surdimensionn\u00e9, et donc plus lourd et plus cher que n\u00e9cessaire\u00a0; un variateur dimensionn\u00e9 pour un fonctionnement moyen tombera en panne pr\u00e9matur\u00e9ment lors des pics. La solution optimale pour la plupart des applications industrielles se situe entre les deux, avec un coefficient de service de 1,3 \u00e0 1,5 appliqu\u00e9 au couple nominal continu.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q2\">Quel est le taux de r\u00e9duction requis et quelle classe de pr\u00e9cision convient\u00a0?<\/summary>\n<div class=\"ans\">Le rapport de denture est d\u00e9termin\u00e9 par le nombre de dents par amorce (40 dents \u00f7 1 amorce = 40:1). La classe de pr\u00e9cision (DIN 5, DIN 6 ou DIN 7) d\u00e9pend de l'application\u00a0: DIN 5 pour les plateaux tournants de pr\u00e9cision et les platines m\u00e9trologiques, DIN 6 pour les entra\u00eenements industriels g\u00e9n\u00e9raux et les axes auxiliaires de machines-outils, et DIN 7 pour les convoyeurs et les indexeurs lents. Une classe de pr\u00e9cision sup\u00e9rieure double le temps d'usinage des dents, ce qui augmente le co\u00fbt unitaire de 15 \u00e0 20\u00a0\u00b5F (%). La plupart des demandes des \u00e9quipementiers cor\u00e9ens portent sur la norme DIN 6, car la pr\u00e9cision accrue de la norme DIN 5 n'est rentable que pour la faible proportion d'entra\u00eenements n\u00e9cessitant un positionnement inf\u00e9rieur \u00e0 10 secondes d'arc. En cas de doute, privil\u00e9giez la norme DIN 6 et optez pour une classe sup\u00e9rieure uniquement si le premier prototype pr\u00e9sente un flottement mesurable en sortie.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q3\">Quelles sont les options d'enveloppe et de montage disponibles sur la machine h\u00f4te\u00a0?<\/summary>\n<div class=\"ans\">Centre distance between the two axes, bore sizes on both components, and any housing constraints all feed into the geometry. Share a DXF or STEP of the host if possible \u2014 our engineering desk will check fit before quoting. Typical fit issues we catch during drawing review: wheel outer diameter too large for the existing housing pocket, worm shaft too long for the bearing span, and bore tolerance not accounting for thermal expansion in a hot-running drive. Catching these before production saves both parties a full lead-time cycle and avoids the awkward &#8220;we shipped it but it does not fit&#8221; conversation.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q4\">Dans quel environnement le disque fonctionnera-t-il\u00a0?<\/summary>\n<div class=\"ans\">La temp\u00e9rature ambiante, l'humidit\u00e9, la pr\u00e9sence de brouillard de liquide de refroidissement ou d'atmosph\u00e8re corrosive, ainsi que les exigences de nettoyage, influent sur le choix des mat\u00e9riaux. Les industries agroalimentaires et pharmaceutiques privil\u00e9gient g\u00e9n\u00e9ralement l'acier inoxydable sur acier inoxydable\u00a0; les ateliers d'usinage utilisent habituellement l'acier au carbone sur bronze avec des carters \u00e9tanches\u00a0; les applications marines exigent l'acier inoxydable et une protection cathodique suppl\u00e9mentaire sur toutes les fixations expos\u00e9es. Les sp\u00e9cifications environnementales d\u00e9terminent non seulement le choix des mat\u00e9riaux, mais aussi le syst\u00e8me d'\u00e9tanch\u00e9it\u00e9\u00a0: un entra\u00eenement soumis \u00e0 un nettoyage intensif n\u00e9cessite au minimum des joints IP67, ce qui modifie la g\u00e9om\u00e9trie des roulements et de l'arbre.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q5\">Le verrouillage automatique est-il n\u00e9cessaire, ou la possibilit\u00e9 de reculer est-elle acceptable\u00a0?<\/summary>\n<div class=\"ans\">Si le syst\u00e8me d'entra\u00eenement maintient une charge lev\u00e9e hors tension (palan, ascenseur, actionneur de vanne), un verrouillage automatique est imp\u00e9ratif. Cela implique l'utilisation d'une vis sans fin \u00e0 un seul spire avec un angle d'h\u00e9lice inf\u00e9rieur \u00e0 5\u00b0. Si le rendement prime sur la capacit\u00e9 de maintien, une vis sans fin \u00e0 plusieurs spires avec un angle d'h\u00e9lice plus \u00e9lev\u00e9 offre un rendement de 85 \u00e0 92 % (%), mais le syst\u00e8me risque alors de tourner librement en sens inverse. Le choix est binaire\u00a0: il n'y a pas de compromis. Un mauvais choix de sp\u00e9cification peut entra\u00eener une perte de capacit\u00e9 de maintien (glissement de la charge en cas de coupure de courant) ou une surconsommation d'\u00e9nergie en fonctionnement continu. Les ascenseurs critiques pour la s\u00e9curit\u00e9 exigent syst\u00e9matiquement une g\u00e9om\u00e9trie \u00e0 verrouillage automatique, souvent compl\u00e9t\u00e9e par un frein m\u00e9canique externe.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q6\">Quelle est la dur\u00e9e de vie pr\u00e9vue et \u00e0 quelle fr\u00e9quence le disque dur peut-il \u00eatre entretenu\u00a0?<\/summary>\n<div class=\"ans\">Ces variateurs sont con\u00e7us pour tenir compte de l'usure de la roue. Une roue en bronze correctement dimensionn\u00e9e a g\u00e9n\u00e9ralement une dur\u00e9e de vie de 20\u00a0000 \u00e0 40\u00a0000 heures avant d'\u00eatre remplac\u00e9e. Si le variateur doit fonctionner sans entretien pendant dix ans, 24 h\/24 et 7 j\/7, il convient de surdimensionner la roue d'un module et d'utiliser une huile synth\u00e9tique\u00a0; cette combinaison porte la dur\u00e9e de vie \u00e0 environ 60\u00a0000 heures. Pour les applications o\u00f9 le variateur est int\u00e9gr\u00e9 \u00e0 un ensemble \u00e9tanche et ne peut \u00eatre entretenu sur site (actionneurs a\u00e9rospatiaux, dispositifs m\u00e9dicaux \u00e9tanches), le dimensionnement doit viser la dur\u00e9e de vie totale pr\u00e9vue sans usure de la roue, ce qui implique g\u00e9n\u00e9ralement l'utilisation d'une roue en acier tremp\u00e9 plut\u00f4t qu'en bronze.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q7\">Avez-vous besoin d'un kit s\u00e9par\u00e9, d'un r\u00e9ducteur complet ou d'une bo\u00eete de vitesses pr\u00eate \u00e0 l'emploi pour moteur\u00a0?<\/summary>\n<div class=\"ans\">Le catalogue propose trois niveaux d'int\u00e9gration\u00a0: des paires vis sans fin et roue dent\u00e9e d\u00e9tach\u00e9es (composants seuls, carter et roulements fournis par le client), des r\u00e9ducteurs \u00e0 vis sans fin complets (carter \u00e9tanche rempli d'huile, arbres d'entr\u00e9e et de sortie allong\u00e9s) et des r\u00e9ducteurs \u00e0 vis sans fin \u00e0 brides acceptant des servomoteurs ou des moteurs pas \u00e0 pas sur brides NEMA ou IEC. L'effort d'int\u00e9gration diminue \u00e0 chaque niveau. Une paire d\u00e9tach\u00e9e est la solution la plus \u00e9conomique, mais exige le plus de travail d'ing\u00e9nierie de la part du client\u00a0; un r\u00e9ducteur pr\u00eat \u00e0 recevoir un moteur est livr\u00e9 sous forme d'ensemble int\u00e9gr\u00e9, mais son prix unitaire est plus \u00e9lev\u00e9. Les \u00e9quipementiers cor\u00e9ens travaillant sur de nouvelles conceptions de machines commencent g\u00e9n\u00e9ralement par un r\u00e9ducteur complet et ne passent aux paires d\u00e9tach\u00e9es qu'une fois la conception finalis\u00e9e et le volume de production justifiant un assemblage en interne.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"guide-foot\"><!-- [et_pb_line_break_holder] -->    <strong>Vous avez r\u00e9pondu aux sept questions\u00a0? Vous \u00eates pr\u00eat \u00e0 demander un devis\u00a0\u2014 notre bureau de S\u00e9oul vous r\u00e9pondra sous un jour ouvr\u00e9.<\/strong><!-- [et_pb_line_break_holder] -->    <a href=\"#contact\" class=\"cta\">Demander un devis \u2192<\/a><!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/section>\n<p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><\/div>\n<p><!-- [et_pb_line_break_holder] --><!-- end .epg-v4 --><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><script><!-- [et_pb_line_break_holder] -->(function(){<!-- [et_pb_line_break_holder] -->  'use strict';<!-- [et_pb_line_break_holder] -->  var root = document.querySelector('.epg-v4');<!-- [et_pb_line_break_holder] -->  if(!root) return;<!-- [et_pb_line_break_holder] -->  \/\/ Progressive enhancement: only activate hide-then-reveal animations when JS is running.<!-- [et_pb_line_break_holder] -->  \/\/ If this script fails to execute (script stripped, errors, etc.), content stays visible by default.<!-- [et_pb_line_break_holder] -->  if('IntersectionObserver' in window){ root.classList.add('js-anim'); }<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->  \/\/ --- HTML escape ---<!-- [et_pb_line_break_holder] -->  function esc(s){ return String(s==null?'':s).replace(\/[&<>\"']\/g, function(c){return {'&':'&','<':'<','>':'>','\"':'\"',\"'\":'''}[c];}); }<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->  \/\/ --- Reveal on intersect ---<!-- [et_pb_line_break_holder] -->  var io = new IntersectionObserver(function(entries){<!-- [et_pb_line_break_holder] -->    entries.forEach(function(e){ if(e.isIntersecting){ e.target.classList.add('in'); io.unobserve(e.target); } });<!-- [et_pb_line_break_holder] -->  }, {threshold:0.12});<!-- [et_pb_line_break_holder] -->  root.querySelectorAll('.reveal').forEach(function(el){ io.observe(el); });<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->  \/\/ --- Material progress bars ---<!-- [et_pb_line_break_holder] -->  var bars = root.querySelectorAll('.mat-table .bar');<!-- [et_pb_line_break_holder] -->  var barIO = new IntersectionObserver(function(entries){<!-- [et_pb_line_break_holder] -->    entries.forEach(function(e){ if(e.isIntersecting){ e.target.classList.add('in'); barIO.unobserve(e.target); } });<!-- [et_pb_line_break_holder] -->  },{threshold:0.3});<!-- [et_pb_line_break_holder] -->  bars.forEach(function(b){ barIO.observe(b); });<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->  \/\/ --- Hero stat counters ---<!-- [et_pb_line_break_holder] -->  var statEls = root.querySelectorAll('.micro-stats strong[data-count]');<!-- [et_pb_line_break_holder] -->  var statIO = new IntersectionObserver(function(entries){<!-- [et_pb_line_break_holder] -->    entries.forEach(function(e){<!-- [et_pb_line_break_holder] -->      if(!e.isIntersecting) return;<!-- [et_pb_line_break_holder] -->      var el = e.target; var target = parseInt(el.getAttribute('data-count'),10); var start = 0; var step = Math.max(1, Math.ceil(target\/40));<!-- [et_pb_line_break_holder] -->      el.textContent = '0';<!-- [et_pb_line_break_holder] -->      var t = setInterval(function(){ start += step; if(start >= target){ el.textContent = target + (target>=50?'+':''); clearInterval(t); } else { el.textContent = start; } }, 32);<!-- [et_pb_line_break_holder] -->      statIO.unobserve(el);<!-- [et_pb_line_break_holder] -->    });<!-- [et_pb_line_break_holder] -->  },{threshold:0.5});<!-- [et_pb_line_break_holder] -->  statEls.forEach(function(el){ statIO.observe(el); });<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->  \/\/ --- Ratio calculator (inline oninput handlers do the work; this is just initial sync) ---<!-- [et_pb_line_break_holder] -->  var cz = root.querySelector('#calc-z'), cn = root.querySelector('#calc-n'), co = root.querySelector('#calc-out');<!-- [et_pb_line_break_holder] -->  if(cz && cn && co){<!-- [et_pb_line_break_holder] -->    var z = parseInt(cz.value,10)||40; var n = parseInt(cn.value,10)||1;<!-- [et_pb_line_break_holder] -->    if(n<1) n=1; if(z<1) z=1;<!-- [et_pb_line_break_holder] -->    co.textContent = (Math.round(z\/n*100)\/100) + ':1';<!-- [et_pb_line_break_holder] -->  }<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->  \/\/ --- Search bar (inline handlers on the input\/button do the actual work \u2014 this is just a no-op fallback) ---<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->  \/\/ --- Fetch with timeout (kept available for potential dynamic upgrades) ---<!-- [et_pb_line_break_holder] -->  function fetchWithTimeout(url, ms){<!-- [et_pb_line_break_holder] -->    var ctrl = new AbortController(); var t = setTimeout(function(){ ctrl.abort(); }, ms||8000);<!-- [et_pb_line_break_holder] -->    return fetch(url, {signal: ctrl.signal}).then(function(r){ clearTimeout(t); if(!r.ok) throw new Error('HTTP '+r.status); return r.json(); }).catch(function(e){ clearTimeout(t); throw e; });<!-- [et_pb_line_break_holder] -->  }<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->  \/\/ --- Optional dynamic product enhancement: if WP API returns featured products, replace the first 3 cards ---<!-- [et_pb_line_break_holder] -->  fetchWithTimeout('\/wp-json\/wp\/v2\/product?per_page=6&_embed', 8000).then(function(list){<!-- [et_pb_line_break_holder] -->    if(!Array.isArray(list) || list.length < 3) return;<!-- [et_pb_line_break_holder] -->    var grid = root.querySelector('#prod-grid'); if(!grid) return;<!-- [et_pb_line_break_holder] -->    var html = '';<!-- [et_pb_line_break_holder] -->    list.slice(0,6).forEach(function(p){<!-- [et_pb_line_break_holder] -->      var title = (p.title && p.title.rendered) ? p.title.rendered.replace(\/<[^>]+>\/g,'') : '';<!-- [et_pb_line_break_holder] -->      var link = p.link || '#';<!-- [et_pb_line_break_holder] -->      var img = '';<!-- [et_pb_line_break_holder] -->      try {<!-- [et_pb_line_break_holder] -->        var media = p._embedded && p._embedded['wp:featuredmedia'] && p._embedded['wp:featuredmedia'][0];<!-- [et_pb_line_break_holder] -->        if(media){<!-- [et_pb_line_break_holder] -->          var sizes = media.media_details && media.media_details.sizes || {};<!-- [et_pb_line_break_holder] -->          img = (sizes.medium_large && sizes.medium_large.source_url) || (sizes.medium && sizes.medium.source_url) || (sizes.thumbnail && sizes.thumbnail.source_url) || media.source_url || '';<!-- [et_pb_line_break_holder] -->        }<!-- [et_pb_line_break_holder] -->      } catch(e){}<!-- [et_pb_line_break_holder] -->      if(!img) img = 'https:\/\/worm-and-worm-wheel.com\/wp-content\/uploads\/2026\/04\/Worm-Gear-set-1.webp';<!-- [et_pb_line_break_holder] -->      var cat = '';<!-- [et_pb_line_break_holder] -->      try {<!-- [et_pb_line_break_holder] -->        var terms = p._embedded && p._embedded['wp:term'];<!-- [et_pb_line_break_holder] -->        if(terms && terms.length){<!-- [et_pb_line_break_holder] -->          for(var i=0;i<terms.length;i++){<!-- [et_pb_line_break_holder] -->            if(terms[i] && terms[i].length && terms[i][0].taxonomy === 'product_cat'){ cat = terms[i][0].name; break; }<!-- [et_pb_line_break_holder] -->          }<!-- [et_pb_line_break_holder] -->        }<!-- [et_pb_line_break_holder] -->      } catch(e){}<!-- [et_pb_line_break_holder] -->      var excerpt = '';<!-- [et_pb_line_break_holder] -->      try { excerpt = (p.excerpt && p.excerpt.rendered) ? p.excerpt.rendered.replace(\/<[^>]+>\/g,'').substring(0,120) : ''; } catch(e){}<!-- [et_pb_line_break_holder] -->      html += '<a class=\"prod-card\" href=\"'+esc(link)+'\">'<!-- [et_pb_line_break_holder] -->            + '<\/p>\n<div class=\"img\"><img decoding=\"async\" src=\"'+esc(img)+'\" alt=\"'+esc(title)+'\" loading=\"lazy\"><\/div>\n<p>'<!-- [et_pb_line_break_holder] -->            + '<\/p>\n<div class=\"body\">\n<h4>'+esc(title)+'<\/h4>\n<div class=\"cat-pill\">'+esc(cat||'Worm gear')+'<\/div>\n<p>'<!-- [et_pb_line_break_holder] -->            + (excerpt ? '<pee class=\"prod-desc\">'+esc(excerpt)+'<\/pee>' : '')<!-- [et_pb_line_break_holder] -->            + '<\/div>\n<p><\/a>';<!-- [et_pb_line_break_holder] -->    });<!-- [et_pb_line_break_holder] -->    if(html) grid.innerHTML = html;<!-- [et_pb_line_break_holder] -->  }).catch(function(){ \/* keep static fallback already in HTML *\/ });<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->  \/\/ --- Working principle: scroll-linked step highlight ---<!-- [et_pb_line_break_holder] -->  var stepItems = root.querySelectorAll('.work-steps li');<!-- [et_pb_line_break_holder] -->  if(stepItems.length){<!-- [et_pb_line_break_holder] -->    var stepIO = new IntersectionObserver(function(entries){<!-- [et_pb_line_break_holder] -->      entries.forEach(function(e){<!-- [et_pb_line_break_holder] -->        if(e.isIntersecting){ e.target.classList.add('active'); }<!-- [et_pb_line_break_holder] -->        else { e.target.classList.remove('active'); }<!-- [et_pb_line_break_holder] -->      });<!-- [et_pb_line_break_holder] -->    }, {threshold: 0.55});<!-- [et_pb_line_break_holder] -->    stepItems.forEach(function(el){ stepIO.observe(el); });<!-- [et_pb_line_break_holder] -->  }<!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] -->})();<!-- [et_pb_line_break_holder] --><\/script>[\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-1154","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/worm-and-worm-wheel.com\/fr\/wp-json\/wp\/v2\/pages\/1154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/worm-and-worm-wheel.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/worm-and-worm-wheel.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/fr\/wp-json\/wp\/v2\/comments?post=1154"}],"version-history":[{"count":14,"href":"https:\/\/worm-and-worm-wheel.com\/fr\/wp-json\/wp\/v2\/pages\/1154\/revisions"}],"predecessor-version":[{"id":1182,"href":"https:\/\/worm-and-worm-wheel.com\/fr\/wp-json\/wp\/v2\/pages\/1154\/revisions\/1182"}],"wp:attachment":[{"href":"https:\/\/worm-and-worm-wheel.com\/fr\/wp-json\/wp\/v2\/media?parent=1154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}