{"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\/tr\/","title":{"rendered":"Ev"},"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 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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 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[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>Precision <em>worm and worm wheel<\/em> engineered for Korean industry.<\/h1>\n<p><!-- [et_pb_line_break_holder] -->      <pee class=\"sub\">Korea Ever-Power Worm And Worm Wheel Co.,Ltd manufactures a full catalogue of worm drive components \u2014 from \u00d85 mm micro-modules to \u00d8300 mm industrial worm wheels \u2014 shipped out of Ansan to OEMs across Korea, Japan and Southeast Asia since 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>Years on the floor<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div><strong data-count=\"50\">50+<\/strong>Export destinations<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div><strong data-count=\"25\">25<\/strong>Day standard lead<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div><strong>DIN 5\u20137<\/strong>Accuracy grade<\/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\/tr\/urun-kategori\/worm-and-worm-wheel\/\" class=\"cta\">Browse the catalogue \u2192<\/a><!-- [et_pb_line_break_holder] -->        <a href=\"\/tr\/contact\/\" class=\"cta outline\">Talk to an engineer<\/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=\"Search products \u2014 brass worm wheel, M1.5 alloy steel, CNC worm gear...\" aria-label=\"Search worm gear products\" 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();}\">Search<\/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\">Fundamentals<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>What are worm gears, exactly?<\/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>A worm gear is a right-angle power transmission where a threaded cylindrical shaft \u2014 the worm \u2014 drives a toothed wheel whose teeth wrap obliquely around its circumference. Each turn of the worm advances the wheel by one tooth, which means a single-start worm meshing with a 40-tooth wheel delivers a 40:1 reduction in one compact stage. No other parallel-shaft gearing achieves that ratio density in the same envelope. The main components of a worm gear system reduce to just two engineered parts: the worm shaft on the input side, and the worm wheel on the driven side.<\/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=\"Worm gear structure showing worm shaft and worm wheel meshing\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->      <button class=\"hotspot h1\" data-tip=\"Worm (worm shaft) \u2014 threaded driver\" aria-label=\"Worm shaft\">1<\/button><!-- [et_pb_line_break_holder] -->      <button class=\"hotspot h2-pt\" data-tip=\"Worm wheel \u2014 driven tooth wheel\" aria-label=\"Worm wheel\">2<\/button><!-- [et_pb_line_break_holder] -->      <button class=\"hotspot h3-pt\" data-tip=\"Lead angle \u2014 governs efficiency\" aria-label=\"Lead angle\">3<\/button><!-- [et_pb_line_break_holder] -->      <button class=\"hotspot h4-pt\" data-tip=\"Contact zone \u2014 sliding engagement\" aria-label=\"Contact zone\">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\">Anatomy at a glance<\/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>The self-locking property<\/h3>\n<p><!-- [et_pb_line_break_holder] -->        <pee style=\"font-size:14px;margin:0;color:var(--c-steel)\">Shallow lead angles (below ~5\u00b0) produce static friction high enough that the wheel cannot back-drive the worm. This is a safety feature on lifts and an engineering trade-off on efficient drives \u2014 you cannot usually have both in the same set.<\/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 of worm gears<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Non-throat, single-throat, and double-throat worm gears.<\/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\">Three geometries \u2014 the different types of worm gears most commonly specified \u2014 cover nearly every drive in service today: non-throat, single-throat, and double-throat. The choice between them is driven mainly by how much the wheel teeth wrap around the worm \u2014 more wrap means more tooth pairs in contact at any moment, which raises load capacity at the cost of machining complexity. A rough rule we give first-time Korean customers: pick non-throat for cost-driven light drives, single-throat for 80 % of industrial work, and double-throat only when torque density is the deciding factor.<\/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=\"Non-throat worm gear with cylindrical worm and straight worm wheel\" 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 \/ Simplest geometry<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<h3>Non-throat worm gears<\/h3>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"tt-meta\"><span>Lowest cost<\/span><span>Point contact<\/span><span>1\u20132 teeth engaged<\/span><\/div>\n<p><!-- [et_pb_line_break_holder] -->        <pee>Cylindrical worm meshing with a cylindrical wheel \u2014 the wheel face is straight-cut, not throated around the worm. Only one or two teeth engage at any time, so load capacity is the lowest of the three types, but tooling is simple and replacement wheels are trivial to cut.<\/pee><!-- [et_pb_line_break_holder] -->        <span class=\"tt-badge\">Typical: light-duty indexing, instrument drives, office electronics<\/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=\"Single-throat worm gear with throated worm wheel\" 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 \/ Industrial workhorse<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<h3>Single-throat worm gears<\/h3>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"tt-meta\"><span>Most common<\/span><span>Line contact<\/span><span>3\u20134 teeth engaged<\/span><\/div>\n<p><!-- [et_pb_line_break_holder] -->        <pee>The worm stays cylindrical but the wheel is hobbed with a concave throat that wraps partially around the worm. Three to four teeth sit in mesh at any time \u2014 the contact pattern is a short line rather than a point. This is the worm gear type you will see most often in industrial reducers, hoist drives, and machine-tool C-axis applications.<\/pee><!-- [et_pb_line_break_holder] -->        <span class=\"tt-badge\">Typical: industrial reducers, hoist drives, CNC C-axis<\/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=\"Double-throat worm gear with hourglass worm and throated worm wheel\" 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 \/ Maximum capacity<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<h3>Double-throat (double-enveloping) worm gears<\/h3>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<div class=\"tt-meta\"><span>Hourglass worm<\/span><span>Double-enveloping<\/span><span>6\u20138 teeth engaged<\/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\">Typical: heavy hoists, military, high-torque servo drives<\/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\">Working principle<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>How do worm gears work \u2014 step by step.<\/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\">The worm drive converts rotary input on the worm shaft into slower, higher-torque rotary output on the worm wheel. Because the worm and wheel axes sit at 90\u00b0 to each other, the motion transfer also changes shaft direction in a single stage. The five-step walkthrough below is the shop-floor explanation our engineering desk uses when a new Korean customer asks how worm gears work in practice rather than in theory.<\/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>Input at the worm shaft<\/h4>\n<pee>The motor, hand-wheel, or upstream gear turns the worm at its rated rpm \u2014 typically 500 \u2013 3000 rpm for industrial drives.<\/pee><\/li>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<li data-step=\"02\">\n<h4>Thread engages wheel tooth<\/h4>\n<pee>Each rotation of the worm advances one tooth of the worm wheel for a single-start worm, two teeth for a double-start worm, and so on.<\/pee><\/li>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<li data-step=\"03\">\n<h4>Sliding contact transfers force<\/h4>\n<pee>Contact between worm flank and wheel tooth is primarily sliding, which is why a worm gear needs a dedicated lubricant envelope \u2014 not the same oil as a spur reducer.<\/pee><\/li>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<li data-step=\"04\">\n<h4>Torque multiplication at the wheel<\/h4>\n<pee>Output torque scales roughly with the ratio minus friction losses. A 40:1 set with 85 % efficiency delivers 34 \u00d7 the input torque at the wheel.<\/pee><\/li>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<li data-step=\"05\">\n<h4>Self-locking holds the load<\/h4>\n<pee>When input power stops, a shallow-lead worm cannot be back-driven by the load on the wheel \u2014 the drive holds position without a brake.<\/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=\"Worm gear working principle diagram showing motion transfer\" 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\">Worm gear ratio and calculation<\/h3>\n<p><!-- [et_pb_line_break_holder] -->  <pee style=\"max-width:820px;margin-bottom:20px\">The worm gear ratio is determined by a single equation: reduction ratio = worm wheel teeth \u00f7 worm thread starts. Try the live calculator below \u2014 change either number and the reduction updates instantly. Engineers often use this to sanity-check a quote before drawing the housing envelope.<\/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=\"Worm gear ratio calculation schematic showing worm starts and worm wheel teeth\" loading=\"lazy\"><!-- [et_pb_line_break_holder] --><figcaption>The schematic above shows the geometric relationship: a single rotation of the worm advances the wheel by one tooth when the worm has one start, two teeth for a double-start worm, and so on. The reduction is therefore simply the wheel tooth count divided by the number of thread starts on the worm. <strong>Rule of thumb:<\/strong> higher starts raise efficiency but cut the ratio \u2014 a 4-start worm on a 40-tooth wheel gives only 10:1 but runs close to 90 % efficient; a 1-start worm on the same wheel gives 40:1 but at 55\u201370 % efficient.<\/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>Worm wheel teeth (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>Worm starts (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>Reduction ratio<\/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\">Formula: i = Z \/ n \u00a0|\u00a0 single-start worms (n=1) give the highest ratio per stage; multi-start worms (n=2 \u2013 4) raise efficiency at the cost of 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\">Anatomy<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>The two halves of any worm gear set.<\/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=\"Worm shaft showing thread starts and flank geometry\" 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>The worm (worm shaft)<\/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>Malzeme<\/span><strong>SCM415 \/ 20CrMnTi<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Sertlik<\/span><strong>58\u201362 HRC (case)<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Starts available<\/span><strong>1, 2, 3, 4<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Surface finish<\/span><strong>Ra 0.4 \u00b5m (ground)<\/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=\"Worm wheel showing tooth profile and throat\" 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>The worm wheel<\/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>Malzeme<\/span><strong>Tin bronze \/ Al-Fe bronze<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Sertlik<\/span><strong>65\u201390 HB<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Tooth count<\/span><strong>Z20 \u2013 Z120 standard<\/strong><\/li>\n<p><!-- [et_pb_line_break_holder] -->          <\/p>\n<li><span>Accuracy grade<\/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\">Material selection<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>What materials are worm gears made from?<\/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\">Five material families cover almost every worm gear in service. The pairing rule experienced engineers follow: hard worm shaft on softer worm wheel, with a hardness ratio of roughly 2:1 between the two. The softer wheel absorbs the sliding friction and wears preferentially, which protects the more-costly hardened worm shaft across several wheel service lives.<\/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>Load capacity<\/th>\n<th>Corrosion resistance<\/th>\n<th>Best fit<\/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>Tin bronze wheel + alloy steel worm<\/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>General industrial drives, machine tools<\/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>Aluminium-iron bronze wheel + SCM415 worm<\/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>Hoists, heavy conveyors, 24\/7 duty<\/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>Stainless 316 wheel + stainless 304 worm<\/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>Food, pharma, marine environments<\/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>Ductile cast iron wheel + 40Cr worm<\/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>Heavy slow drives (cement, mining)<\/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>PA66 nylon wheel + POM worm<\/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>Office electronics, 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\">Bar lengths are relative scoring against the strongest option in the same column; not absolute engineering values.<\/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=\"Worms and worm wheels made of different materials \u2014 bronze, alloy steel, stainless, plastic\" loading=\"lazy\"><!-- [et_pb_line_break_holder] -->    <pee>Every catalogue worm gear set we list is available in at least three of these material pairs as a standard order \u2014 custom pairings outside this list are quoted individually with an engineering review. For high-volume production programmes, our metallurgy desk can also source custom bronze alloys from Korean and Japanese foundries when the specification demands something beyond the standard catalogue grades.<\/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\">Mounting<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Worm gear mounting methods \u2014 keyway, set screw, split.<\/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\">A worm wheel can be fixed to its shaft by one of three standard mounting methods \u2014 keyway, set screw, or split hub. The choice is driven mainly by transmitted torque, assembly access, and how often the wheel needs to come off in service. Engineers often settle the mounting question after the material pair has been chosen \u2014 the three methods below each handle a different combination of load and serviceability.<\/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>A rectangular slot cut into both the shaft and the wheel bore receives a matching steel key. The key transmits all torque by shear \u2014 no friction at all between bore and shaft. This is the highest-torque mounting method available and also the one that tolerates the most thermal cycling. The downside: removing a keyed wheel after years of service can be difficult if the bore has corroded onto the shaft.<\/pee><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"use\">LOAD: high \u00a0|\u00a0 REMOVAL: frequent<\/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>Set screw<\/h3>\n<p><!-- [et_pb_line_break_holder] -->      <pee>A threaded fastener through the wheel hub bears down on a flat machined into the shaft. Torque is transmitted by friction plus the indent the screw makes in the shaft flat. The method is cheap and fast to install, and the hub does not need an expensive keyway broaching operation \u2014 which is why it dominates in catalogue worm wheels for small drives.<\/pee><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"use\">LOAD: low\u2013medium \u00a0|\u00a0 REMOVAL: occasional<\/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>Split hub (clamp)<\/h3>\n<p><!-- [et_pb_line_break_holder] -->      <pee>The wheel hub is slit radially and closed around the shaft by two or four clamp bolts. No shaft machining is required \u2014 the wheel locates purely by frictional grip. Repositioning is easy, which makes split-hub mounting the preferred choice on prototype and low-volume machines where the design may still iterate. The clamp force does require larger hub diameter, so split is not always the right answer in tight envelopes.<\/pee><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"use\">LOAD: medium \u00a0|\u00a0 REMOVAL: very frequent<\/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=\"Worm gear mounting methods comparison\" 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\">Capability at a glance<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Why Korean OEMs route worm gear orders through 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 operates a dedicated worm gear and worm wheel production line inside the Ansan industrial zone. The facility is specialised \u2014 no spur or helical gearing comes off these lines \u2014 which keeps the engineering knowledge deep and the setup time between catalogue sizes short. Four things differentiate the Ansan operation from the larger tier-1 Japanese suppliers Korean buyers usually compare against.<\/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 \/ LEAD TIME<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <strong style=\"display:block;font-size:20px;color:var(--c-deep);line-height:1.3\">25-day standard<\/strong><!-- [et_pb_line_break_holder] -->        <pee>catalogue items ship in 25 business days \u2014 60 % shorter than the 8-week Japanese tier-1 average on equivalent specifications<\/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 \/ MOQ POLICY<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <strong style=\"display:block;font-size:20px;color:var(--c-deep);line-height:1.3\">Two-piece MOQ<\/strong><!-- [et_pb_line_break_holder] -->        <pee>prototype batches from 2 pieces, production runs from 10 \u2014 useful when the customer is still iterating a design<\/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 \/ ACCURACY CLASS<\/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>full range in-house; DIN 5 rotary-table grade ground after heat treatment on Reishauer profile grinder<\/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\">Seoul desk \u00b7 Korean<\/strong><!-- [et_pb_line_break_holder] -->        <pee>drawing reviews and quotations in Korean within one working day; Japanese and English also supported<\/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=\"Ever-Power worm gear production facility in Ansan Korea\" 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 is registered as Korea Ever-Power Worm And Worm Wheel Co., Ltd at Sandan-ro, Danwon-gu, Ansan-si, Gyeonggi-do. The production floor runs on an ISO 9001:2015 quality system with IATF 16949-aligned procedures for automotive tier-1 programmes. Contact the engineering desk at sales@worm-and-worm-wheel.com \u2014 drawings are reviewed under NDA before any quotation leaves the office.<\/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\">Browse the catalogue<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Featured worm gear products.<\/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 flagship worm gear products below cover the most-shipped categories out of the Ansan line \u2014 stainless for CNC, alloy steel for automotive, duplex for zero-backlash precision, cylindrical for general industrial, brass for micro applications, and plastic for instrument drives. Each card links to the full product page with parameter table, material options, and enquiry details.<\/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\/tr\/urun\/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=\"CNC Makineleri i\u00e7in Paslanmaz \u00c7elik Sonsuz Di\u015fli\" loading=\"lazy\"><\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\">\n<h4>Stainless Steel Worm Gear<\/h4>\n<div class=\"cat-pill\">CNC \u00b7 Stainless<\/div>\n<pee class=\"prod-desc\">DIN 5 \u2013 DIN 7 accuracy for CNC rotary tables and machine-tool C-axis drives. 304\/316 stainless for corrosive environments.<\/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\/tr\/urun\/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=\"Otomobil Par\u00e7alar\u0131 i\u00e7in Ala\u015f\u0131ml\u0131 \u00c7elik Sonsuz Di\u015fli ve Sonsuz Di\u015fli \u00c7ark\" 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\">Automotive \u00b7 Alloy<\/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\/tr\/urun\/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=\"Duplex Worm Gear Set for zero-backlash drives\" loading=\"lazy\"><\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\">\n<h4>Duplex Worm Gear Set<\/h4>\n<div class=\"cat-pill\">Zero-backlash<\/div>\n<pee class=\"prod-desc\">Axial-shift worm with variable tooth thickness eliminates backlash by 30 \u2013 40 % over standard catalogue sets.<\/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\/tr\/urun\/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=\"Cylindrical Worm Wheel Sets\" loading=\"lazy\"><\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\">\n<h4>Cylindrical Worm Wheel<\/h4>\n<div class=\"cat-pill\">Line-contact<\/div>\n<pee class=\"prod-desc\">Single-throat cylindrical pair, the industrial workhorse \u2014 bronze-on-steel for 80 % of general drive applications.<\/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\/tr\/urun\/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=\"Brass Worm Wheel and Shaft Set\" 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\">Micro-module brass wheel with matched steel worm shaft for instrument drives, office electronics, and medical devices.<\/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\/tr\/urun\/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=\"Plastic Worm Gears POM PA66\" loading=\"lazy\"><\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<div class=\"body\">\n<h4>Plastic Worm Gears<\/h4>\n<div class=\"cat-pill\">POM \u00b7 PA66<\/div>\n<pee class=\"prod-desc\">Engineering-grade POM and PA66 wheels for silent-running, low-load applications \u2014 office equipment, toys, consumer goods.<\/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\/tr\/urun-kategori\/worm-and-worm-wheel\/\" class=\"cta outline\" style=\"background:transparent;color:var(--c-deep);border:1.5px solid var(--c-deep)\">View the full catalogue \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\">Uygulamalar<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<h2>Where worm gears earn their keep.<\/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>The common applications of worm gears span every corner of industrial life \u2014 wherever a design needs big reduction in a small envelope, quiet operation, or the ability to hold load without a brake. The four industry panels below cover roughly 70 % of the drives we ship from Ansan each quarter. Outside these four, we also ship regular volumes into medical imaging equipment, theatre lighting rigs, wind-turbine yaw and pitch drives, solar tracker actuators, and professional broadcast pan-tilt heads \u2014 all applications where the combination of high ratio, silent operation and self-locking capability simply cannot be matched by a competing gear family.<\/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=\"Worm gear applications across automotive, machine tools, hoists, conveyors and packaging industries\" 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>Electric power steering, seat recline motors, wiper drives, parking brake actuators \u2014 the 20CrMnTi-on-bronze pair dominates here, typically DIN 6 accuracy with IATF 16949 documentation.<\/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 \/ Machine tools<\/div>\n<p><!-- [et_pb_line_break_holder] -->        <pee>5-axis rotary tables, ATC magazines, C-axis drives on CNC lathes \u2014 DIN 5 to DIN 7 accuracy depending on position. Ground teeth on the wheel are standard for rotary-table duty.<\/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>Self-locking worm drives hold the load when power is cut \u2014 eliminates the separate brake that a helical gear drive would need. Single-start worm with sub-5\u00b0 lead is the defining feature.<\/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>Low-rpm output and quiet running make the worm gear the standard choice for packaging lines and food conveyors. Stainless material pair preferred for wash-down compatibility.<\/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\">Engineering honesty<\/div>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<h2>Advantages, limitations, and lubrication.<\/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>Advantages of worm gears<\/h3>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<ul><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Big reduction in one stage.<\/strong> 20:1 up to 300:1 without stacking planetary stages.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Self-locking capability.<\/strong> Holds load without a separate brake when lead angle is below about 5\u00b0.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>90\u00b0 shaft arrangement.<\/strong> Changes direction and reduces speed in the same component.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Quiet and smooth.<\/strong> Sliding contact produces lower noise than any parallel-shaft alternative.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Shock absorption.<\/strong> The sliding interface acts as a damper against cyclic torque spikes.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Compact envelope.<\/strong> Ratio density per unit volume is the highest of any gear family.<\/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>Limitations of worm gears<\/h3>\n<p><!-- [et_pb_line_break_holder] -->      <\/p>\n<ul><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Lower efficiency.<\/strong> Sliding contact loses 10 \u2013 50 % depending on ratio and lubrication \u2014 far more than a spur or helical.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Heat generation.<\/strong> The same sliding that delivers quiet running also produces heat that must be carried away by the oil.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Not reversible (by design).<\/strong> Self-locking is a feature, but it means the wheel cannot drive the worm in a shallow-lead set.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Lubricant-sensitive.<\/strong> Worm drives need dedicated gear oils \u2014 ISO VG 220 or 460 synthetic is typical; standard hydraulic oil is not enough.<\/li>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<li><strong>Wheel wear is the life-limiter.<\/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>Unit cost per Nm.<\/strong> For the same output torque, a helical stage is typically 15 \u2013 30 % cheaper than a worm drive.<\/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>Worm gear lubrication at a glance<\/h3>\n<p><!-- [et_pb_line_break_holder] -->    <pee style=\"font-size:14.5px;color:var(--c-steel);max-width:780px\">Worm gear lubrication selection depends on sump temperature, worm rpm and load. The table below shows the ISO VG grade our engineering desk typically recommends for each combination \u2014 treat it as a starting point, not a final specification. Drives running outside these conditions, or drives with unusual duty cycles, deserve an individual lubrication review before the first oil fill. Getting the viscosity grade right is the single most impactful service-life decision on any worm gear set \u2014 a two-grade mismatch can halve expected bearing and flank life.<\/pee><!-- [et_pb_line_break_holder] -->    <\/p>\n<table class=\"lube-table\"><!-- [et_pb_line_break_holder] -->      <\/p>\n<thead>\n<tr>\n<th>Sump temperature<\/th>\n<th>Low load (\u226430 % rating)<\/th>\n<th>Medium load<\/th>\n<th>Heavy load (\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>Below 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\">ISO VG 680 synth<\/td>\n<\/tr>\n<p><!-- [et_pb_line_break_holder] -->        <\/p>\n<tr>\n<td>Above 90 \u00b0C<\/td>\n<td class=\"vg\">ISO VG 460 synth<\/td>\n<td class=\"vg\">ISO VG 680 synth<\/td>\n<td class=\"vg\">Forced cooling<\/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\">Synthetic polyalphaolefin (PAO) or polyglycol (PAG) oils are preferred for sump temperatures above 70 \u00b0C \u2014 mineral oils oxidise too quickly in that range. Polyglycol oils give slightly lower friction on sliding contact and can extend service life by 30 \u2013 50 % at elevated temperature, but they are not compatible with every seal material \u2014 consult our engineering desk before retrofitting PAG into a drive originally specified for mineral oil.<\/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>Three common failure modes to watch for<\/h3>\n<p><!-- [et_pb_line_break_holder] -->    <pee style=\"font-size:14px;color:var(--c-steel);margin-bottom:14px\">Knowing how these drives fail is half the battle in designing one that lasts. The three failure modes below account for roughly 85 % of warranty returns across our Korean customer base \u2014 recognising them early lets the maintenance team plan a scheduled replacement instead of a line-stop emergency.<\/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>Pitting on wheel flank<\/strong><!-- [et_pb_line_break_holder] -->        <pee>Small surface pits from repeated contact stress. Expected over long life; if they appear early, the drive is overloaded or the lubricant film is too thin.<\/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>Scoring of tooth surfaces<\/strong><!-- [et_pb_line_break_holder] -->        <pee>Longitudinal score marks from momentary metal-to-metal contact. Caused by lubricant starvation, wrong viscosity, or 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>Tooth breakage at root<\/strong><!-- [et_pb_line_break_holder] -->        <pee>Sudden catastrophic failure. Caused by shock overload or fatigue after prolonged operation outside the dimensioned service factor.<\/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>How to select the right worm gear \u2014 in seven 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\">The seven questions below cover every piece of information our engineering desk needs to quote a worm gear set or worm gearbox. Work through them before the first email \u2014 doing so typically cuts the quotation cycle from four days to under one.<\/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\">What input rpm and output torque does the drive need to deliver?<\/summary>\n<div class=\"ans\">Start with the worst-case duty point \u2014 peak torque at the wheel and the maximum continuous input rpm at the worm. These two numbers size the drive envelope before anything else. If the drive sees intermittent peaks above continuous rating, note the duty cycle (e.g., 30 % on, 70 % off) as well. A drive sized for peak continuous torque will often be oversized and therefore heavier and more expensive than needed; a drive sized for the average duty will fail prematurely at the peaks. The honest answer for most industrial applications sits between the two, with a service factor of 1.3 to 1.5 applied to the continuous rating.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q2\">What reduction ratio is required, and what accuracy class fits?<\/summary>\n<div class=\"ans\">Ratio is set by the teeth-to-starts relationship (40 teeth \u00f7 1 start = 40:1). Accuracy class \u2014 DIN 5, DIN 6 or DIN 7 \u2014 is set by the application: 5 for precision rotary tables and metrology stages, 6 for general industrial drives and machine-tool auxiliary axes, 7 for conveyors and slower indexers. Tighter class doubles the tooth-grinding time, which adds 15 \u2013 20 % to unit cost per step. Most Korean OEM enquiries land on DIN 6 because the extra precision of DIN 5 only pays back on the small fraction of drives that need sub-10 arc-second positioning. When in doubt, specify DIN 6 and step up only if the first prototype shows measurable hunt in the output.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q3\">What envelope and mounting pattern is available in the host machine?<\/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\">What environment will the drive operate in?<\/summary>\n<div class=\"ans\">Ambient temperature, humidity, presence of coolant mist or corrosive atmosphere, and wash-down requirements all affect material selection. Food and pharma operations typically force stainless-on-stainless; machine-tool shops usually run carbon-steel-on-bronze with sealed housings; marine applications demand stainless plus additional cathodic protection on any exposed fasteners. The environmental specification drives not only the material choice but also the seal arrangement \u2014 a wash-down drive needs IP67 seals at minimum, which changes the bearing and shaft geometry.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q5\">Is self-locking required, or is back-drivability acceptable?<\/summary>\n<div class=\"ans\">If the drive holds a lifted load when power is off (hoist, lift, valve actuator) \u2014 self-locking is mandatory, which means a single-start worm with sub-5\u00b0 lead angle. If efficiency matters more than holding capacity, a multi-start worm at higher lead angle delivers 85 \u2013 92 % efficiency but the drive will back-drive freely. The choice is binary; there is no middle ground. Get the specification wrong here and the drive either loses holding capability (load slips when power is removed) or burns too much energy in the continuous-duty case. Safety-critical lifts always demand self-locking geometry, often supplemented by a separate mechanical brake.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q6\">What service life is expected, and how often can the drive be serviced?<\/summary>\n<div class=\"ans\">These drives are designed around wheel wear. A properly dimensioned bronze wheel typically runs 20 000 \u2013 40 000 operating hours before requiring replacement. If the drive must be maintenance-free for ten years of 24\/7 operation, oversize the wheel by one module step and specify a synthetic oil \u2014 the combination extends service life to roughly 60 000 hours. For applications where the drive is inside a sealed assembly and cannot be serviced in the field (aerospace actuators, sealed medical devices), sizing must target the full design life with zero wheel wear, which usually means a hardened steel wheel instead of bronze.<\/div>\n<\/details>\n<p><!-- [et_pb_line_break_holder] -->    <\/p>\n<details class=\"guide-q\">\n<summary data-n=\"Q7\">Do you need a loose set, a complete reducer, or a motor-ready gearbox?<\/summary>\n<div class=\"ans\">The catalogue offers three levels of integration: loose worm-and-wheel pairs (the pure components, customer supplies housing and bearings), complete worm gear reducers (oil-filled, sealed housing, input and output shafts extended), and flanged worm gearboxes that accept servo or stepper motors on NEMA or IEC flanges. Integration effort drops at each level. A loose pair is the cheapest unit cost but demands the most engineering work from the customer; a motor-ready gearbox ships as a drop-in assembly but carries a higher unit price. Korean OEMs working on new machine designs usually start with a complete reducer and move to loose pairs only after the design matures and volume justifies in-house assembly.<\/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>Answered all seven? You are ready to request a quote \u2014 our Seoul desk replies within one working day.<\/strong><!-- [et_pb_line_break_holder] -->    <a href=\"#contact\" class=\"cta\">Request a quote \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'); 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