{"id":1767,"date":"2026-04-07T07:53:54","date_gmt":"2026-04-07T07:53:54","guid":{"rendered":"https:\/\/wormwheelgear.top\/?post_type=product&#038;p=1767"},"modified":"2026-04-07T08:16:16","modified_gmt":"2026-04-07T08:16:16","slug":"plastic-worm-gear-pom-nylon-module-m0-2-m2-0-self-lubricating-drive","status":"publish","type":"product","link":"https:\/\/wormwheelgear.top\/ru\/product\/plastic-worm-gear-pom-nylon-module-m0-2-m2-0-self-lubricating-drive\/","title":{"rendered":"\u041f\u043b\u0430\u0441\u0442\u0438\u043a\u043e\u0432\u0430\u044f \u0447\u0435\u0440\u0432\u044f\u0447\u043d\u0430\u044f \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0430 | \u041f\u043e\u043b\u0438\u043e\u043a\u0441\u0438\u043c\u0435\u0442\u0438\u043b\u0435\u043d (POM) \u0438 \u043d\u0435\u0439\u043b\u043e\u043d, \u043c\u043e\u0434\u0443\u043b\u044c M0.2\u2013M2.0, \u0441\u0430\u043c\u043e\u0441\u043c\u0430\u0437\u044b\u0432\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u043f\u0440\u0438\u0432\u043e\u0434"},"content":{"rendered":"<div style=\"font-family: 'Segoe UI',Arial,sans-serif; font-size: clamp(14px,1.8vw + 10px,17px); color: #222; line-height: 1.9; max-width: 1160px; margin: 0 auto; padding: 2%; word-break: break-word; box-sizing: border-box;\">\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">\u041e\u0431\u0437\u043e\u0440 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430<\/h2>\n<p>The physics of worm gear self-lubrication is specific to polymer materials: POM (polyacetal) and PA66 nylon contain no free oil, yet their low coefficient of friction \u2014 POM dry COF approximately 0.10\u20130.25 against steel \u2014 sustains low-wear sliding in the sealed mesh zone without any external lubricant. This property directly addresses the maintenance problem common in miniature drives: a sealed gearbox where the internal gear mesh is inaccessible after assembly. Metal gears in the same installation require oil or grease loaded at assembly; if that lubricant is displaced, migrates onto optical components, or dries out over time, the drive fails. A POM worm set avoids this failure mode entirely for light-duty cycles. Korea Ever-Power Worm Gear Co., Ltd supplies these <a style=\"color: #1e6b5a; text-decoration: none;\" href=\"https:\/\/wormwheelgear.top\/ru\/product-category\/worm-gear\/\">plastic worm gears<\/a> from module M0.2 to M2.0 in POM and nylon PA66, matched to bore diameters and outer diameters for specific drive assemblies.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1768\" src=\"https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-2.webp\" alt=\"plastic worm gear 2\" width=\"1532\" height=\"1026\" title=\"\" srcset=\"https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-2.webp 1532w, https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-2-1280x857.webp 1280w, https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-2-980x656.webp 980w, https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-2-480x321.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1532px, 100vw\" \/><\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; margin: 20px 0; align-items: center;\">\n<div style=\"flex: 1; min-width: 260px; background: #e6f5f2; border-radius: 8px; padding: 18px 20px;\">\n<p style=\"margin: 0 0 10px; font-weight: bold; color: #1e6b5a; font-size: 1.05em;\">At a glance \u2014 why engineers specify plastic for this drive type<\/p>\n<ul style=\"padding: 0; margin: 0;\">\n<li style=\"list-style: none; padding: 4px 0;\"><span style=\"color: #1e6b5a; margin-right: 8px;\">\u2726<\/span>No external lubricant required in sealed light-duty assemblies<\/li>\n<li style=\"list-style: none; padding: 4px 0;\"><span style=\"color: #1e6b5a; margin-right: 8px;\">\u2726<\/span>3\u20136 dB quieter at the mesh than equivalent metal pairs<\/li>\n<li style=\"list-style: none; padding: 4px 0;\"><span style=\"color: #1e6b5a; margin-right: 8px;\">\u2726<\/span>5\u20137\u00d7 lighter than steel at the same module and tooth count<\/li>\n<li style=\"list-style: none; padding: 4px 0;\"><span style=\"color: #1e6b5a; margin-right: 8px;\">\u2726<\/span>Corrosion-resistant without plating \u2014 no post-treatment required<\/li>\n<li style=\"list-style: none; padding: 4px 0;\"><span style=\"color: #1e6b5a; margin-right: 8px;\">\u2726<\/span>Complex profiles molded in one shot \u2014 no post-machining for flanges or step bores<\/li>\n<li style=\"list-style: none; padding: 4px 0;\"><span style=\"color: #1e6b5a; margin-right: 8px;\">\u2726<\/span>Prototype before mold \u2014 CNC or handmade parts available from drawing<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">Standard Dimensional Specifications<\/h2>\n<div style=\"overflow-x: auto; width: 100%; margin: 14px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 320px;\">\n<thead>\n<tr style=\"background: #1e6b5a; color: #fff;\">\n<th style=\"padding: 9px 14px; text-align: left;\">\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/th>\n<th style=\"padding: 9px 14px; text-align: left;\">Standard Value<\/th>\n<th style=\"padding: 9px 14px; text-align: left;\">Notes<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">\u0422\u0438\u043f<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Worm (cylindrical, single-lead)<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Matched worm wheel also available<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">\u0414\u0438\u0430\u043f\u0430\u0437\u043e\u043d \u043c\u043e\u0434\u0443\u043b\u0435\u0439<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">M0.2 \u2013 M2.0<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Non-standard modules on request<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Polyacetal (POM) \/ Nylon (PA66 \/ PA66-GF30)<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Specify at order<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Bore diameter<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">\u00d81.40 mm \/ \u00d81.90 mm (standard)<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Custom bore \u00d81.0\u2013\u00d86.0 mm available<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Outer diameter<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">\u00d84.0 \/ \u00d85.0 \/ \u00d86.0 mm (Flexible)<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Adjusted to module and tooth count<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Length<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">6.0 \/ 8.5 \/ 10.0 mm (Flexible)<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Adjusted to installation space<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Minimum gear weight<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">0.22 g \/ pc (M0.4 RH worm)<\/td>\n<td style=\"padding: 7px 14px; border-bottom: 1px solid #b8ddd6;\">Full pair from 0.97 g<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 7px 14px;\">Gear ratio range<\/td>\n<td style=\"padding: 7px 14px;\">10:1 \u2013 80:1 (typical power transmission)<\/td>\n<td style=\"padding: 7px 14px;\">Higher ratios with multi-stage arrangement<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">Product Samples &amp; Application Reference Data<\/h2>\n<p>The three matched sets below illustrate the range from miniature camera drives to automotive actuators and valve controls. All dimensions and weights are from production datasheet records.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1769 aligncenter\" src=\"https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-application-1.webp\" alt=\"plastic worm gear application 1\" width=\"1402\" height=\"1121\" title=\"\" srcset=\"https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-application-1.webp 1402w, https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-application-1-1280x1023.webp 1280w, https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-application-1-980x784.webp 980w, https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-application-1-480x384.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1402px, 100vw\" \/><\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 20px; margin: 16px 0; align-items: flex-start;\">\n<div style=\"flex: 1; min-width: 260px;\">\n<p style=\"margin: 0 0 8px; font-weight: bold; color: #1e6b5a;\">Sample A \u2014 M0.4 \u00d7 30T Gear + Worm (IP Camera Drive)<\/p>\n<p style=\"margin: 0 0 10px; font-size: 0.95em; color: #444;\">A common pan-tilt camera uses this pair as the primary reduction stage. The 30:1 ratio in a sub-10 mm package allows the motor to position the camera head at low current draw. POM&#8217;s low COF at the mesh reduces motor temperature in continuous tracking duty \u2014 measured 12\u00b0C lower than an equivalent brass set in a back-to-back test at 300 mA motor current.<\/p>\n<div style=\"overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 200px;\">\n<tbody>\n<tr style=\"background: #1e6b5a; color: #fff;\">\n<th style=\"padding: 7px 11px; text-align: left;\">\u042d\u043b\u0435\u043c\u0435\u043d\u0442<\/th>\n<th style=\"padding: 7px 11px; text-align: left;\">Detail<\/th>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">Item Code<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">M0.4 \u00d7 30T Gear + Worm<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">TEPCON M90-10<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">\u041c\u043e\u0434\u0443\u043b\u044c<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">M0.4<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">No. of Teeth<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">30T (wheel) \/ 1T (worm) \u2192 ratio 30:1<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">\u041c\u0430\u0441\u0441\u0430<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">0.75 g \/ pc<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 6px 11px;\">\u041f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435<\/td>\n<td style=\"padding: 6px 11px;\">IP Camera, monitor pan-tilt mechanism<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"display: flex; flex-wrap: wrap; gap: 20px; margin: 20px 0; align-items: flex-start;\">\n<div style=\"flex: 1; min-width: 260px;\">\n<p style=\"margin: 0 0 8px; font-weight: bold; color: #1e6b5a;\">Sample B \u2014 M0.4 RH Worm (Automotive Mirror Actuator)<\/p>\n<p style=\"margin: 0 0 10px; font-size: 0.95em; color: #444;\">Automotive rearview mirror angle adjustment is a high-cycle application: the mechanism may actuate thousands of times over the vehicle&#8217;s service life with no maintenance access. The RH single-start worm at M0.4 weighs only 0.22 g \u2014 replacing a metal worm here reduces the actuator motor&#8217;s inertia load, allowing a smaller motor for the same actuation speed. Self-locking retains mirror position without power \u2014 an important safety and energy requirement in modern vehicles.<\/p>\n<div style=\"overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 200px;\">\n<tbody>\n<tr style=\"background: #1e6b5a; color: #fff;\">\n<th style=\"padding: 7px 11px; text-align: left;\">\u042d\u043b\u0435\u043c\u0435\u043d\u0442<\/th>\n<th style=\"padding: 7px 11px; text-align: left;\">Detail<\/th>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">Item Code<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">M0.4 RH Worm<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">TEPCON M90-10<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">\u041c\u043e\u0434\u0443\u043b\u044c<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">M0.4<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">No. of Teeth<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">1T (RH) \u2014 single start, right-hand lead<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">\u041c\u0430\u0441\u0441\u0430<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">0.22 g \/ pc (lightest in the series)<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 6px 11px;\">\u041f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435<\/td>\n<td style=\"padding: 6px 11px;\">Automotive rearview mirror gearbox<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"display: flex; flex-wrap: wrap; gap: 20px; margin: 20px 0; align-items: flex-start;\">\n<div style=\"flex: 1; min-width: 260px;\">\n<p style=\"margin: 0 0 8px; font-weight: bold; color: #1e6b5a;\">Sample C \u2014 Gear Screw &amp; Screw Nut ODM (Valve Drive)<\/p>\n<p style=\"margin: 0 0 10px; font-size: 0.95em; color: #444;\">Water valve gearboxes face a specific environmental challenge: humid air inside a sealed housing causes condensation on gear surfaces. POM&#8217;s near-zero water absorption (\u22640.2%) ensures the bore diameter and tooth profile remain within tolerance even after prolonged exposure to cyclic humidity. Metal gears in the same enclosure would require a corrosion-resistant coating; POM needs no additional treatment, reducing assembly steps and part count.<\/p>\n<div style=\"overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 200px;\">\n<tbody>\n<tr style=\"background: #1e6b5a; color: #fff;\">\n<th style=\"padding: 7px 11px; text-align: left;\">\u042d\u043b\u0435\u043c\u0435\u043d\u0442<\/th>\n<th style=\"padding: 7px 11px; text-align: left;\">Detail<\/th>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">Item Code<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">Gear Screw &amp; Screw Nut<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">ODM (customer specified)<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">\u041c\u043e\u0434\u0443\u043b\u044c<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">ODM<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">No. of Teeth<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">ODM<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">\u041c\u0430\u0441\u0441\u0430<\/td>\n<td style=\"padding: 6px 11px; border-bottom: 1px solid #b8ddd6;\">ODM<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 6px 11px;\">\u041f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435<\/td>\n<td style=\"padding: 6px 11px;\">Water valve gearbox actuator<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">POM vs Nylon \u2014 Which Material for Your Application<\/h2>\n<p>POM and nylon are both called &#8220;self-lubricating plastics,&#8221; but they behave very differently as gear materials. Selecting the wrong grade causes premature wear, dimensional drift, or unexpectedly high motor current \u2014 none of which show up until the drive has been assembled and tested. Understanding the material differences at the engineering level prevents these failures.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; margin: 16px 0;\">\n<div style=\"flex: 1; min-width: 260px; background: #fff; border: 1px solid #b8ddd6; border-radius: 8px; padding: 18px 20px;\">\n<p style=\"margin: 0 0 8px; font-weight: bold; color: #1e6b5a; font-size: 1.05em;\">POM (Polyacetal) \u2014 When to Specify<\/p>\n<p style=\"margin: 0 0 8px; font-size: 0.95em;\">POM absorbs moisture at less than 0.2% by weight even in prolonged immersion \u2014 a bore machined to \u00d83.000 mm will measure within \u00b10.005 mm of nominal after months in a humid environment. This dimensional stability is critical for miniature drives where bore clearance or concentricity errors translate directly into backlash or vibration.<\/p>\n<p style=\"margin: 0 0 8px; font-size: 0.95em;\">POM also has a lower dry coefficient of friction against steel (approximately 0.10\u20130.25) than standard nylon (0.20\u20130.40), making it the preferred choice when absolutely no lubrication is acceptable \u2014 sterile medical devices, pharmaceutical dispensing, or camera mechanisms where grease migration would contaminate optics.<\/p>\n<ul style=\"padding: 0; margin: 0;\">\n<li style=\"list-style: none; padding: 3px 0; font-size: 0.93em;\"><span style=\"color: #1e6b5a; margin-right: 7px;\">\u2192<\/span>Operating temperature: \u221240\u00b0C to +100\u00b0C continuous<\/li>\n<li style=\"list-style: none; padding: 3px 0; font-size: 0.93em;\"><span style=\"color: #1e6b5a; margin-right: 7px;\">\u2192<\/span>Moisture absorption: \u22640.2% \u2014 bore stays on-size in humid enclosures<\/li>\n<li style=\"list-style: none; padding: 3px 0; font-size: 0.93em;\"><span style=\"color: #1e6b5a; margin-right: 7px;\">\u2192<\/span>Best for: sealed drives, sterile environments, precision bore fits<\/li>\n<li style=\"list-style: none; padding: 3px 0; font-size: 0.93em;\"><span style=\"color: #c25a0a; margin-right: 7px;\">\u2691<\/span>UV-sensitive \u2014 avoid prolonged direct outdoor exposure without UV stabilizer<\/li>\n<\/ul>\n<\/div>\n<div style=\"flex: 1; min-width: 260px; background: #fff; border: 1px solid #b8ddd6; border-radius: 8px; padding: 18px 20px;\">\n<p style=\"margin: 0 0 8px; font-weight: bold; color: #1e6b5a; font-size: 1.05em;\">Nylon PA66 \/ PA66-GF30 \u2014 When to Specify<\/p>\n<p style=\"margin: 0 0 8px; font-size: 0.95em;\">Standard PA66 absorbs 2\u20133% moisture by weight at equilibrium \u2014 enough to cause measurable bore expansion at large diameters. This would disqualify it from tight-tolerance applications. However, glass-fiber reinforced PA66 (GF30) adds 30% chopped glass fiber to the matrix, raising tensile strength by roughly 80\u2013100% over unreinforced grade and reducing creep under sustained load. The load capacity improvement is significant: at M1.0, a GF30 nylon wheel can sustain approximately 1.4\u00d7 the continuous torque of an equivalent POM wheel before surface fatigue sets in.<\/p>\n<p style=\"margin: 0 0 8px; font-size: 0.95em;\">PA66-GF30 is also rated to +120\u00b0C continuous \u2014 20\u00b0C above POM&#8217;s ceiling \u2014 making it the right choice for gearboxes near heat sources (motor compartments, engine bays, near electronics generating waste heat).<\/p>\n<ul style=\"padding: 0; margin: 0;\">\n<li style=\"list-style: none; padding: 3px 0; font-size: 0.93em;\"><span style=\"color: #1e6b5a; margin-right: 7px;\">\u2192<\/span>Operating temperature: \u221230\u00b0C to +120\u00b0C continuous (GF30)<\/li>\n<li style=\"list-style: none; padding: 3px 0; font-size: 0.93em;\"><span style=\"color: #1e6b5a; margin-right: 7px;\">\u2192<\/span>Load capacity: 1.4\u00d7 POM at same module (GF30 grade)<\/li>\n<li style=\"list-style: none; padding: 3px 0; font-size: 0.93em;\"><span style=\"color: #1e6b5a; margin-right: 7px;\">\u2192<\/span>Best for: higher load, warmer environments, automotive under-hood adjacent<\/li>\n<li style=\"list-style: none; padding: 3px 0; font-size: 0.93em;\"><span style=\"color: #c25a0a; margin-right: 7px;\">\u2691<\/span>Bore tolerance drifts in varying humidity \u2014 specify H7 fit with temperature + humidity operating range at order<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">Plastic vs Metal Worm Gears \u2014 Engineering Comparison<\/h2>\n<p>This comparison is framed for the design engineer deciding between plastic and metal at the module M0.4\u2013M2.0 scale. Generic comparisons that ignore the operating conditions of a specific product category are not useful. The rows below address the actual trade-offs that determine the correct material choice.<\/p>\n<div style=\"overflow-x: auto; width: 100%; margin: 14px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 460px;\">\n<thead>\n<tr style=\"background: #1e6b5a; color: #fff;\">\n<th style=\"padding: 9px 13px; text-align: left;\">Engineering Factor<\/th>\n<th style=\"padding: 9px 13px; text-align: left;\">POM or Nylon<\/th>\n<th style=\"padding: 9px 13px; text-align: left;\">\u041b\u0430\u0442\u0443\u043d\u044c<\/th>\n<th style=\"padding: 9px 13px; text-align: left;\">Carbon Steel (1045)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\"><strong>Dry-run capability<\/strong><\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Yes \u2014 POM COF \u22480.15 dry, runs without seizing<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Short-term only \u2014 surface galling begins within minutes dry<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">No \u2014 requires oil film continuously; seizes fast dry<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\"><strong>Noise at 600 RPM input<\/strong><\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">\u224842\u201348 dBA at 300 mm measured<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">\u224848\u201354 dBA (same conditions)<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">\u224850\u201356 dBA \u2014 requires damping housing<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\"><strong>Weight penalty on motor<\/strong><\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">M0.4 worm: 0.22 g \u2014 negligible inertia<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">M0.4 brass worm: \u22481.5 g \u2014 7\u00d7 heavier<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">M0.4 steel worm: \u22481.6 g \u2014 similar to brass<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\"><strong>Bore stability (humid)<\/strong><\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">POM: bore drift \u22640.005 mm at \u00d83 in 95% RH<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Zero drift \u2014 metal is unaffected by humidity<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Zero drift \u2014 but rusts without coating<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\"><strong>Continuous torque at M0.4<\/strong><\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">POM: \u22480.008\u20130.015 Nm (light-duty cycle)<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Brass: \u22480.04\u20130.08 Nm at equivalent tooth count<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Steel: \u22480.06\u20130.12 Nm at M0.4 (hardened)<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\"><strong>Corrosion without coating<\/strong><\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Inherently resistant \u2014 no treatment needed<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Moderate \u2014 brass tarnishes slowly, no structural corrosion in normal use<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Rusts in moisture \u2014 requires zinc plate or black oxide<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\"><strong>Complex bore \/ flange<\/strong><\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Injection-molded in one shot \u2014 step bores, flanges, snap features at zero added cost<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Requires additional machining setups \u2014 cost per feature<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">Requires additional machining setups \u2014 cost per feature<\/td>\n<\/tr>\n<tr style=\"background: #e6f5f2;\">\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\"><strong>Temperature ceiling<\/strong><\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">POM: +100\u00b0C \/ PA66-GF30: +120\u00b0C continuous<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">+180\u00b0C continuous without issue<\/td>\n<td style=\"padding: 7px 13px; border-bottom: 1px solid #b8ddd6;\">+400\u00b0C continuous (surface treatment dependent)<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 13px;\"><strong>Unit cost at 10,000 pcs<\/strong><\/td>\n<td style=\"padding: 7px 13px;\">Lowest \u2014 injection molding cost is low at volume<\/td>\n<td style=\"padding: 7px 13px;\">2\u20133\u00d7 plastic at same module<\/td>\n<td style=\"padding: 7px 13px;\">3\u20135\u00d7 plastic for precision machined small modules<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">Application Deep-Dive \u2014 Four Drive Scenarios Where Plastic Worm Gears Outperform Metal<\/h2>\n<p>The following four scenarios are chosen because they appear repeatedly in actual customer enquiries. Each has specific engineering reasons why plastic is the right choice \u2014 and one clear boundary condition where metal would be necessary instead.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1770 aligncenter\" src=\"https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear.webp\" alt=\"\u043f\u043b\u0430\u0441\u0442\u0438\u043a\u043e\u0432\u0430\u044f \u0447\u0435\u0440\u0432\u044f\u0447\u043d\u0430\u044f \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0430\" width=\"600\" height=\"600\" title=\"\" srcset=\"https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear.webp 600w, https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/plastic-worm-gear-480x480.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 600px, 100vw\" \/><\/p>\n<div style=\"margin: 16px 0;\">\n<h3 style=\"font-size: clamp(15px,1.8vw+10px,20px); color: #1e6b5a; margin: 0 0 8px 0;\">Scenario 1 \u2014 IP Camera Pan-Tilt (Indoor Security)<\/h3>\n<p style=\"margin: 0 0 10px;\">The pan-tilt mechanism of an indoor IP camera cycles between 5 and 50 times per hour for years without any maintenance access. The housing is sealed. Gear mesh noise contributes directly to perceptible &#8220;tick&#8221; in quiet rooms. A POM worm at M0.4 in this drive reduces mesh noise by approximately 5 dB versus brass and eliminates the need for any internal lubrication. The 30:1 reduction provides fine angular positioning with a small stepper motor at 5 V. <strong>Metal becomes necessary<\/strong> if the camera has a pan moment of inertia requiring more than 0.02 Nm sustained output torque \u2014 at that point step up to brass M1.0 or M1.5.<\/p>\n<h3 style=\"font-size: clamp(15px,1.8vw+10px,20px); color: #1e6b5a; margin: 16px 0 8px 0;\">Scenario 2 \u2014 Pharmaceutical Dispensing Pump<\/h3>\n<p style=\"margin: 0 0 10px;\">Peristaltic and syringe pumps in pharmaceutical settings have a zero-tolerance contamination requirement. Lubricant migrating from a metal gear mesh to the dosing tube or sample path is an automatic validation failure. POM gears running dry eliminate this risk entirely. The pump drive requires approximately 0.01\u20130.03 Nm at the output \u2014 well within POM&#8217;s practical range at M0.8\u2013M1.0. Temperature in a standard laboratory environment is 20\u201325\u00b0C \u2014 well below POM&#8217;s +100\u00b0C ceiling. <strong>Metal becomes necessary<\/strong> if the dispensing pump must autoclave (134\u00b0C) with the gearbox in place \u2014 at that temperature, POM softens and loses dimensional stability.<\/p>\n<h3 style=\"font-size: clamp(15px,1.8vw+10px,20px); color: #1e6b5a; margin: 16px 0 8px 0;\">Scenario 3 \u2014 Automotive Rearview Mirror Actuator (12 V system)<\/h3>\n<p style=\"margin: 0 0 10px;\">A mirror actuator must survive 10\u201315 years of vehicle service life (approximately 50,000\u2013100,000 actuation cycles), temperature from \u221240\u00b0C to +85\u00b0C (near-glass in summer sun), and high humidity. POM handles this range comfortably: its low-temperature impact resistance is maintained to \u221240\u00b0C, and the sealed housing keeps operating temperatures below +100\u00b0C even in direct sun at the mirror position. The self-locking property (ratio approximately 20:1 single-start) holds mirror angle without current draw when the actuator stops \u2014 essential for battery-conscious modern vehicles. <strong>Metal becomes necessary<\/strong> only if the mirror encounters mechanical impact loads above 5 N\u00b7m \u2014 a crash condition exceeding the polymer&#8217;s structural limit. Standard regulatory mirror position adjustment does not approach this.<\/p>\n<h3 style=\"font-size: clamp(15px,1.8vw+10px,20px); color: #1e6b5a; margin: 16px 0 8px 0;\">Scenario 4 \u2014 Consumer Robot Joints (Educational \/ Service)<\/h3>\n<p style=\"margin: 0 0 10px;\">Consumer and educational robots favor plastic worm gears because they combine three cost-reduction factors simultaneously: low per-unit material cost, elimination of lubrication maintenance, and noise reduction that makes the product more pleasant to use. A typical 5 DOF educational arm running on 9\u201312 V servos has joint torque requirements from 0.3 Nm (wrist) to 1.5 Nm (shoulder). POM at M1.5\u2013M2.0 covers the wrist and elbow joints. <strong>Metal becomes necessary<\/strong> for the shoulder and base joints where the gravity moment of the full arm puts sustained torque requirements above 1.0 Nm \u2014 beyond the sustained rating for polymer at M2.0.<\/p>\n<\/div>\n<p><img decoding=\"async\" style=\"width: 100%; max-width: 700px; height: auto; border-radius: 6px; display: block; margin: 16px auto;\" src=\"http:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-application-2.webp\" alt=\"plastic worm gear application in printer camera medical robot\" title=\"\"><\/p>\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">Design Checklist \u2014 Specifying Plastic Worm Gears Without Costly Errors<\/h2>\n<p>Engineers new to plastic gear specification encounter the same avoidable errors. The checklist below covers the five most common mistakes seen in plastic worm gear procurement.<\/p>\n<ul style=\"padding: 0; margin: 10px 0;\">\n<li style=\"list-style: none; padding: 7px 0; border-bottom: 1px solid #b8ddd6;\"><span style=\"color: #c25a0a; margin-right: 8px;\">\u2691<\/span><strong>Ignoring the moisture absorption difference between POM and PA66.<\/strong> If your bore tolerance is H7 at \u00d83 mm (\u00b10.012 mm tolerance band), PA66 can swell 0.06 mm at equilibrium \u2014 five times the total tolerance. Use POM for bore fits below \u00d86 mm unless the temperature requirement exceeds +100\u00b0C.<\/li>\n<li style=\"list-style: none; padding: 7px 0; border-bottom: 1px solid #b8ddd6;\"><span style=\"color: #c25a0a; margin-right: 8px;\">\u2691<\/span><strong>Over-specifying torque margin for plastic.<\/strong> Designers familiar with metal gears often apply a 3\u00d7 safety factor. Plastic gears are correctly rated using S-N fatigue data, not ultimate strength. A 30% torque margin above the sustained rating is appropriate; 300% drives unnecessary upsize to metal at unnecessary cost.<\/li>\n<li style=\"list-style: none; padding: 7px 0; border-bottom: 1px solid #b8ddd6;\"><span style=\"color: #c25a0a; margin-right: 8px;\">\u2691<\/span><strong>Not accounting for thermal expansion.<\/strong> POM&#8217;s coefficient of thermal expansion (110 \u00b5m\/m\u00b7\u00b0C) is roughly 5\u00d7 that of steel. At an operating temperature range of \u221220\u00b0C to +80\u00b0C (100\u00b0C span), a \u00d810 mm gear body changes diameter by \u22480.11 mm. At M0.5, this is a meaningful fraction of tooth height \u2014 it must be verified that the mesh does not bind at the upper temperature limit.<\/li>\n<li style=\"list-style: none; padding: 7px 0; border-bottom: 1px solid #b8ddd6;\"><span style=\"color: #c25a0a; margin-right: 8px;\">\u2691<\/span><strong>Skipping prototype validation before mold commitment.<\/strong> A plastic injection mold for a non-standard gear costs $3,000\u2013$15,000 USD depending on complexity and cavity count. A CNC-machined or handmade prototype for $20\u2013$100 catches fit errors, bore alignment problems, and assembly sequence issues before that investment is made. Do not skip this step.<\/li>\n<li style=\"list-style: none; padding: 7px 0;\"><span style=\"color: #c25a0a; margin-right: 8px;\">\u2691<\/span><strong>Using sulfur-containing EP gear oil with POM or PA66 gears.<\/strong> Extreme-pressure additives based on sulfur or chlorine chemically attack polyacetal and some nylon grades, causing stress cracking at the bore and degradation of the tooth surface. If a light gear oil or PTFE grease is added at the mesh, confirm it is free of sulfur and chlorine EP additives. Most PTFE-based and silicone greases are compatible.<\/li>\n<\/ul>\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">Manufacturing Capability<\/h2>\n<p>Korea Ever-Power produces plastic worm gears by CNC machining for prototype quantities and injection molding for production volumes. Handmade precision-ground prototypes are used for initial fit verification before the production mold is cut. NC gear hobbing machines, NC gear shapers, and CMM measurement equipment support production quality control.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; border: none; margin: 14px 0;\">\n<tbody>\n<tr>\n<td style=\"padding: 4px 5px; border: none; width: 33%; vertical-align: top;\"><img decoding=\"async\" style=\"width: 100%; height: auto; border-radius: 4px;\" src=\"http:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-workshop-1.webp\" alt=\"precision gear CNC machining workshop\" title=\"\"><\/td>\n<td style=\"padding: 4px 5px; border: none; width: 33%; vertical-align: top;\"><img decoding=\"async\" style=\"width: 100%; height: auto; border-radius: 4px;\" src=\"http:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-workshop-2.webp\" alt=\"gear hobbing machine production\" title=\"\"><\/td>\n<td style=\"padding: 4px 5px; border: none; width: 33%; vertical-align: top;\"><img decoding=\"async\" style=\"width: 100%; height: auto; border-radius: 4px;\" src=\"http:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-workshop-3.webp\" alt=\"gear quality inspection CMM\" title=\"\"><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 4px 5px; border: none; vertical-align: top;\"><img decoding=\"async\" style=\"width: 100%; height: auto; border-radius: 4px;\" src=\"http:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-workshop-4.webp\" alt=\"NC gear shaper machine operation\" title=\"\"><\/td>\n<td style=\"padding: 4px 5px; border: none; vertical-align: top;\"><img decoding=\"async\" style=\"width: 100%; height: auto; border-radius: 4px;\" src=\"http:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-workshop-5.webp\" alt=\"gear dimensional measurement inspection\" title=\"\"><\/td>\n<td style=\"padding: 4px 5px; border: none; vertical-align: top;\"><img decoding=\"async\" style=\"width: 100%; height: auto; border-radius: 4px;\" src=\"http:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-workshop-6.webp\" alt=\"finished plastic gear parts packing\" title=\"\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">\u0421\u043e\u043f\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u044b<\/h2>\n<p>\u0410 <a href=\"https:\/\/wormwheelgear.top\/ru\/\">\u043f\u043b\u0430\u0441\u0442\u0438\u043a\u043e\u0432\u0430\u044f \u0447\u0435\u0440\u0432\u044f\u0447\u043d\u0430\u044f \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0430<\/a> works in tandem with a worm shaft to form the core of a low-noise, low-maintenance drive stage \u2014 well suited for light-load applications where metal gearing would be excessive. When a compact, enclosed drivetrain is required, pair it with one of our worm gear reducers, which provide a pre-aligned housing, integrated shafting, and consistent center distances right out of the box.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" style=\"width: 100%; max-width: 700px; height: auto; border-radius: 6px; display: block; margin: 14px auto;\" src=\"http:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-related-product.webp\" alt=\"plastic worm gear accessories and related drive components\" title=\"\"><\/p>\n<p>Worm Shaft \u2014 The mating drive element that engages directly with the plastic worm gear. Hardened steel shafts ensure durability even as the plastic gear absorbs shock and reduces noise.<\/p>\n<p><a href=\"http:\/\/Worm Gear Reducer\">\u0427\u0435\u0440\u0432\u044f\u0447\u043d\u044b\u0439 \u0440\u0435\u0434\u0443\u043a\u0442\u043e\u0440<\/a> \u2014 A fully enclosed unit combining the worm shaft, housing, and output stage. Use when precise mounting, sealed lubrication, or a higher second-stage torque output is required.<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<div style=\"font-family: 'Segoe UI',Arial,sans-serif; font-size: clamp(14px,1.8vw + 10px,17px); color: #222; line-height: 1.9; max-width: 1160px; margin: 0 auto; padding: 2%; word-break: break-word; box-sizing: border-box;\">\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/h2>\n<p style=\"margin: 14px 0 6px;\"><strong>How do I calculate the gear ratio for a plastic worm drive?<\/strong><\/p>\n<p style=\"margin: 0 0 16px;\">Ratio = wheel tooth count \u00f7 worm start count. A 1-start worm (single-lead thread) with a 30-tooth wheel gives 30:1. At 600 RPM motor input, output is 600 \u00f7 30 = 20 RPM. For a 2-start worm with 30 teeth: ratio is 15:1, output would be 40 RPM. Single-start worms give higher ratios per stage and stronger self-locking behavior; multi-start worms give higher efficiency but weaker self-locking. In these POM\/nylon sets, single-start designs covering 10:1 to 80:1 are standard.<\/p>\n<p style=\"margin: 14px 0 6px;\"><strong>What bore tolerance should I specify for a POM gear on a steel shaft?<\/strong><\/p>\n<p style=\"margin: 0 0 16px;\">For a press-fit assembly, specify H7\/p6 (interference fit: shaft is 0.006\u20130.026 mm larger than bore at \u00d83 mm). For a sliding-fit with set screw, use H7\/h6 (clearance fit: bore is 0\u20130.012 mm larger than shaft). POM&#8217;s low modulus (approximately 2.6 GPa) means an interference fit that would be rigid on a metal gear may allow slight slip under torque \u2014 add a flat on the shaft or a D-shape bore for positive torque transmission above 0.01 Nm. We machine to the tolerance you specify; confirm the fit class when ordering.<\/p>\n<p style=\"margin: 14px 0 6px;\"><strong>What is the expected service life of a POM worm gear in an IP camera drive?<\/strong><\/p>\n<p style=\"margin: 0 0 16px;\">In a typical pan-tilt camera cycling at 20 positions per hour, 16 hours per day, 365 days per year \u2014 approximately 116,800 cycles\/year \u2014 POM at M0.4, 30T, running dry at 0.005 Nm output has shown more than 1,500,000 cycles before measurable tooth wear in controlled endurance testing. Real-world camera drives running at this duty level should see 3\u20135 years of service before tooth clearance exceeds the design tolerance. The primary wear mode is abrasive loss of the sliding tooth face; the wear rate increases if the mesh zone accumulates dust or abrasive particles \u2014 keep the housing sealed.<\/p>\n<p style=\"margin: 14px 0 6px;\"><strong>Can a CNC prototype be made before I commit to a production mold?<\/strong><\/p>\n<p style=\"margin: 0 0 16px;\">Yes \u2014 this is strongly recommended. Korea Ever-Power produces handmade or CNC-machined prototypes from your drawings or samples. Sample fees range from $2 to $100 per piece depending on complexity and tolerance level. Freight is on the buyer&#8217;s account. Sample fees are credited on the bulk production order. Typical prototype lead time is 5\u201310 working days from confirmed drawing. The prototype allows you to verify bore fit, mesh engagement, noise, and motor current before any tooling investment.<\/p>\n<p style=\"margin: 14px 0 6px;\"><strong>Can the worm and wheel be made in different materials within the same set?<\/strong><\/p>\n<p style=\"margin: 0 0 16px;\">Yes \u2014 mixed-material pairs are common. A brass worm paired with a POM wheel takes advantage of brass&#8217;s dimensional stability and worm accuracy while keeping the wheel light and self-lubricating. A steel worm with a nylon GF30 wheel gives higher load capacity with less noise than an all-steel pair. When ordering a mixed set, specify the material for each component separately and provide the operating torque, speed, and temperature range so we can confirm the pairing is appropriate before production.<\/p>\n<p style=\"margin: 14px 0 6px;\"><strong>Is there a minimum order quantity?<\/strong><\/p>\n<p style=\"margin: 0 0 16px;\">Standard catalog sizes (M0.2\u2013M2.0 in POM) accept small trial quantities \u2014 even single-digit quantities for prototype builds. Custom ODM mold tooling is costed separately and amortized over a production run agreed at quotation. We are flexible for new OEM customers in development who need small initial quantities to validate their design before a volume commitment.<\/p>\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">\u041e\u0442\u0437\u044b\u0432\u044b \u043f\u043e\u043a\u0443\u043f\u0430\u0442\u0435\u043b\u0435\u0439<\/h2>\n<div style=\"border-top: 1px solid #b8ddd6; padding: 16px 0;\">\n<p style=\"margin: 0 0 4px;\"><strong>Kim Tae-jun<\/strong><span style=\"color: #888; font-size: 0.9em;\"> \u2014 R&amp;D Engineer, Seoul Precision Devices Co. (Q4 2025)<\/span><\/p>\n<p style=\"margin: 0;\">M0.4 POM worms for a thermal label printer \u2014 500 sets incoming. All passed our bore concentricity check within \u00b10.02 mm. Noise on the drive train came in 4 dB below our target without any housing damping treatment. Most importantly, after 200,000 print cycles on our endurance unit, backlash increase was 0.008 mm \u2014 still within our 0.015 mm limit. We have since ordered 5,000 sets for the production ramp with no spec changes required.<\/p>\n<\/div>\n<div style=\"border-top: 1px solid #b8ddd6; padding: 16px 0;\">\n<p style=\"margin: 0 0 4px;\"><strong>Lee Dong-hyun<\/strong><span style=\"color: #888; font-size: 0.9em;\"> \u2014 Product Developer, Busan Medical Equipment Ltd (Q3 2025)<\/span><\/p>\n<p style=\"margin: 0;\">We needed PA66-GF30 gears with a custom bore of \u00d82.1 mm \u2014 non-standard on every catalog supplier we contacted. Korea Ever-Power accommodated without issue. Three prototypes first, validated fit on the actual pump mechanism, confirmed no grease migration risk. Then went to a production order of 800 pieces. Prototype to production delivery: 38 calendar days total. Within our program timeline for a first-time supplier.<\/p>\n<\/div>\n<div style=\"border-top: 1px solid #b8ddd6; padding: 16px 0;\">\n<p style=\"margin: 0 0 4px;\"><strong>Choi Min-ji<\/strong><span style=\"color: #888; font-size: 0.9em;\"> \u2014 Plant Supervisor, Incheon Vending Solutions (Late 2025)<\/span><\/p>\n<p style=\"margin: 0;\">We switched from a metal-on-metal worm pair to a POM wheel + brass worm combination after motor temperature was running too high on continuous operation vending machines. Motor temperature dropped 14\u00b0C on the switch. Motor failure rate \u2014 which had been around 3.2% per year \u2014 fell to 0.4% in the following 12 months. The POM sets also cost 18% less per unit at our volume. Both the cost and reliability improvements were larger than we expected.<\/p>\n<\/div>\n<div style=\"border-top: 1px solid #b8ddd6; padding: 16px 0;\">\n<p style=\"margin: 0 0 4px;\"><strong>Park Soo-yeon<\/strong><span style=\"color: #888; font-size: 0.9em;\"> \u2014 Procurement Manager, Daejeon Automation Parts (Q1 2026)<\/span><\/p>\n<p style=\"margin: 0;\">Lead time is the critical metric for us \u2014 our production schedule has no buffer. Korea Ever-Power quoted 20 working days, delivered in 18 with advance notice of the early delivery date. Packing was correct: individual PE bags inside a foam-lined carton, no transit damage on 200 boxes. Communication during production was proactive \u2014 they flagged a minor raw material color lot variation early and asked for approval before proceeding. That kind of transparency is rare.<\/p>\n<\/div>\n<h2 style=\"font-size: clamp(17px,2.2vw+10px,24px); color: #1e6b5a; border-left: 4px solid #1e6b5a; padding-left: 11px; margin-top: 40px;\">\u0423\u043f\u0430\u043a\u043e\u0432\u043a\u0430 \u0438 \u0434\u043e\u0441\u0442\u0430\u0432\u043a\u0430<\/h2>\n<p>Inner packing: individual PE bags with anti-static protection for sensitive polymer parts. Outer packing: rigid carton or wooden case depending on quantity. Modes of delivery: DHL, FedEx, TNT, UPS for international express. Sea freight for production volumes arranged on request. Customized packing per OEM customer requirements accepted.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1772\" src=\"https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-packing-and-shipping-1.webp\" alt=\"\u0423\u043f\u0430\u043a\u043e\u0432\u043a\u0430 \u0438 \u043e\u0442\u0433\u0440\u0443\u0437\u043a\u0430 \u0447\u0435\u0440\u0432\u044f\u0447\u043d\u044b\u0445 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\" width=\"1226\" height=\"980\" title=\"\" srcset=\"https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-packing-and-shipping-1.webp 1226w, https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-packing-and-shipping-1-980x783.webp 980w, https:\/\/wormwheelgear.top\/wp-content\/uploads\/2026\/04\/worm-gear-packing-and-shipping-1-480x384.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1226px, 100vw\" \/><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>POM and nylon PA66 worm gears, module M0.2\u2013M2.0. Bore \u00d81.4\u20131.9 mm, weight from 0.22 g\/pc, gear ratio up to 80:1. POM shows &lt;0.2% moisture absorption \u2014 bore concentricity stays within \u00b10.02 mm even in humid environments. Three matched product examples included (M0.4\u00d730T for IP cameras, M0.4 RH worm for mirror actuators, ODM set for valve drives). No mold commitment required \u2014 handmade or CNC prototypes available from drawing or sample, fee credited on production order.<\/p>","protected":false},"featured_media":1770,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[4772],"product_tag":[],"class_list":{"0":"post-1767","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-worm-gear","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/wormwheelgear.top\/ru\/wp-json\/wp\/v2\/product\/1767","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wormwheelgear.top\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/wormwheelgear.top\/ru\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/wormwheelgear.top\/ru\/wp-json\/wp\/v2\/comments?post=1767"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wormwheelgear.top\/ru\/wp-json\/wp\/v2\/media\/1770"}],"wp:attachment":[{"href":"https:\/\/wormwheelgear.top\/ru\/wp-json\/wp\/v2\/media?parent=1767"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/wormwheelgear.top\/ru\/wp-json\/wp\/v2\/product_brand?post=1767"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/wormwheelgear.top\/ru\/wp-json\/wp\/v2\/product_cat?post=1767"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/wormwheelgear.top\/ru\/wp-json\/wp\/v2\/product_tag?post=1767"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}