{"id":1517,"date":"2026-07-14T05:54:01","date_gmt":"2026-07-14T05:54:01","guid":{"rendered":"https:\/\/gearrack.top\/product\/automotive-double-helical-gear-pom-pa-peek-m0-15-m2-2\/"},"modified":"2026-07-14T05:54:31","modified_gmt":"2026-07-14T05:54:31","slug":"automotive-double-helical-gear-pom-pa-peek-m0-15-m2-2","status":"publish","type":"product","link":"https:\/\/gearrack.top\/it\/product\/automotive-double-helical-gear-pom-pa-peek-m0-15-m2-2\/","title":{"rendered":"Automotive Double Helical Gear – POM, PA, PEEK, M0.15-M2.2"},"content":{"rendered":"
\n

<\/p>\n

Product Overview<\/h2>\n
\n
\n \"Automotive\n <\/div>\n
\n

Automotive double helical gears<\/strong> in engineering plastics bring the mechanical advantages of the herringbone tooth form \u2014 axial thrust elimination, high contact ratio, smooth and quiet engagement \u2014 to compact, lightweight, corrosion-resistant gear sets for automotive and related applications. The starting example is \u03a615 mm at module M0.25 in POM, representative of the small-diameter precision plastic gear sets used in automotive actuator mechanisms, window regulators, seat adjustment drives, and HVAC door actuators.<\/p>\n

Korea Ever-Power produces automotive double helical gears<\/a> across the full specification range: \u03a63\u2013\u03a6120 mm diameter, module M0.15 to M2.2, in POM, PA (Nylon), PPA, PBT, and PEEK. Meshing grades from GB 6 through ISO 6, AGMA 13, and DIN 5\u20136 cover instrument drives through industrial-grade automotive components. ODM and OEM service, TS16949 and ISO 9001:2008 certification, vacuum tray packaging, and express international delivery by DHL, TNT, FedEx, and UPS.<\/p>\n<\/p><\/div>\n<\/div>\n

Helical gears can transmit energy between parallel or perpendicular shaft axes through helical teeth designed to distribute contact pressure gradually along the full tooth face. Because of their tooth inclination, helical gears run smoother and quieter than spur gears and carry heavy loads more efficiently. The double helical form eliminates the axial thrust force that helical gears produce \u2014 a specific advantage in compact automotive actuator gear trains where the space for thrust bearing provision is not available.<\/p>\n

<\/p>\n

Technical Specifications<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Automotive Double Helical Gear \u2014 Product Specification<\/th>\n<\/tr>\n<\/thead>\n
Dimension Range<\/strong><\/td>\n\u03a63 mm \u2013 \u03a6120 mm outer diameter<\/td>\n<\/tr>\n
Module Range<\/strong><\/td>\nM0.15 \u2013 M2.2<\/td>\n<\/tr>\n
Standard Example<\/strong><\/td>\n\u03a615 mm, M0.25, POM<\/td>\n<\/tr>\n
Material Type<\/strong><\/td>\nPOM, PA (Nylon), PPA, PBT, PEEK \u2014 per customer specification<\/td>\n<\/tr>\n
Meshing Grade<\/strong><\/td>\nGB 6, ISO 6, JGMA 1, JIS 6, AGMA 13, DIN 6, DIN 5<\/td>\n<\/tr>\n
Application<\/strong><\/td>\nMedical, Industrial, Automotive, Military, Aircraft, Mechanical, Auto<\/td>\n<\/tr>\n
Customisation<\/strong><\/td>\nODM \/ OEM \u2014 fully customised per drawing or sample<\/td>\n<\/tr>\n
Campioni<\/strong><\/td>\nAvailable<\/td>\n<\/tr>\n
Packing<\/strong><\/td>\nVacuum-packed in plastic tray<\/td>\n<\/tr>\n
Delivery Methods<\/strong><\/td>\nDHL, TNT, FedEx, UPS \u2014 international express delivery<\/td>\n<\/tr>\n
Certifications<\/strong><\/td>\nISO 9001:2008; TS16949 (automotive quality management system)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

Engineering Plastic Material Selection Guide<\/h2>\n

\"Ever-Power<\/p>\n

The five materials available for automotive double helical gears cover a wide range of operating conditions. Selecting the correct material requires matching the material’s thermal, chemical, and mechanical properties to the specific duty cycle of the application.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Material<\/th>\nKey Properties<\/th>\nTypical Automotive Application<\/th>\nMax Continuous Temp.<\/th>\n<\/tr>\n<\/thead>\n
POM<\/td>\nLow friction, high wear resistance, good dimensional stability, self-lubricating<\/td>\nWindow regulators, seat adjusters, wiper drives, HVAC actuators<\/td>\n90\u2013100\u00b0C<\/td>\n<\/tr>\n
PA (Nylon)<\/td>\nHigh impact resistance, good chemical resistance, self-lubricating, absorbs moisture<\/td>\nPower window motors, door lock actuators, cooling fan drives<\/td>\n100\u2013110\u00b0C<\/td>\n<\/tr>\n
PPA<\/td>\nHigh temperature resistance, low moisture absorption, good chemical resistance<\/td>\nUnder-bonnet actuators, transmission control modules, engine bay sensors<\/td>\n150\u2013170\u00b0C<\/td>\n<\/tr>\n
PBT<\/td>\nGood dimensional stability, low moisture absorption, excellent surface finish<\/td>\nElectronic actuator gears, throttle body drives, fuel system components<\/td>\n120\u2013130\u00b0C<\/td>\n<\/tr>\n
PEEK<\/td>\nHighest thermal resistance, excellent chemical resistance, high strength, biocompatible<\/td>\nAerospace, military, and high-performance automotive; medical implant-adjacent drives<\/td>\n240\u2013260\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

Key Features of Automotive Double Helical Gears<\/h2>\n

\"types<\/p>\n

\n
\n

Smooth and Quiet Operation<\/h3>\n

Helical teeth distribute the contact pressure gradually along the tooth face, eliminating the impact engagement of spur gears. Automotive interior applications \u2014 window regulators, seat drives \u2014 are inaudible when properly designed with helical gears; the same mechanism with spur gears would produce an audible whine at the operating speed.<\/p>\n<\/p><\/div>\n

\n

Zero Net Axial Thrust<\/h3>\n

The double helical form eliminates the axial thrust load that single helical gears impose on shaft bearings. In compact automotive actuator gear trains where shaft support is provided by small bushings rather than rolling element bearings, this thrust elimination directly reduces bushing wear and actuator back-drive friction.<\/p>\n<\/p><\/div>\n

\n

High Contact Ratio<\/h3>\n

Higher contact ratio distributes the load across more tooth pairs simultaneously, reducing peak load per tooth and extending gear life. In an automotive gear set running millions of cycles over the vehicle service life, higher contact ratio directly translates to longer tooth surface fatigue life and lower noise at operating speed.<\/p>\n<\/p><\/div>\n

\n

High Meshing Grade Accuracy<\/h3>\n

Meshing grades GB 6, ISO 6, AGMA 13, and DIN 5\u20136 represent high-accuracy plastic gear production. At DIN 5 accuracy, the transmission error of the plastic gear pair is comparable to that of hobbed metal gears \u2014 the noise and vibration advantages of the helical tooth form are fully realised only when the tooth accuracy is adequate to prevent additional noise from pitch and profile errors.<\/p>\n<\/p><\/div>\n<\/div>\n

<\/p>\n

Applications<\/h2>\n

\"types<\/p>\n

\n
\n
<\/div>\n

Automotive Actuators<\/h3>\n

Window regulator drives, seat adjustment mechanisms, HVAC door actuators, sunroof drives, and mirror adjusters \u2014 the largest volume application for small-diameter POM and PA automotive double helical gears. TS16949 certification is mandatory for automotive OEM supply.<\/p>\n<\/p><\/div>\n

\n
<\/div>\n

Medical Devices<\/h3>\n

Infusion pump drives, surgical instrument actuators, and diagnostic device gear trains. PEEK for implant-adjacent and sterilisable applications; POM or PA for general medical automation. The high meshing grade accuracy (ISO 6, AGMA 13) meets the precision requirement of medical instrument drives.<\/p>\n<\/p><\/div>\n

\n
\u2708\ufe0f<\/div>\n

Military and Aircraft<\/h3>\n

Precision instrument and control mechanism drives in military electronics and aircraft auxiliary systems. PEEK double helical gears for high-temperature under-deck locations; POM for room-temperature avionics bays. The low radar cross-section of plastic gears is a secondary advantage in certain military applications.<\/p>\n<\/p><\/div>\n

\n
\u2699\ufe0f<\/div>\n

Industrial Automation<\/h3>\n

Small stepping motor drives, conveyor positioning mechanisms, and pick-and-place robot wrist actuators where the \u03a63\u2013\u03a6120 mm size range, light weight, self-lubrication, and corrosion resistance of plastic double helical gears are all simultaneously required.<\/p>\n<\/p><\/div>\n

\n
\ufe0f<\/div>\n

Office and Electronic Equipment<\/h3>\n

Printer paper-feed drives, scanner mechanisms, and photocopier roller drives. The quiet operation of the helical form and the self-lubrication of POM eliminate the gear noise and lubrication maintenance that characterise equivalent spur gear drives in office equipment.<\/p>\n<\/p><\/div>\n

\n
<\/div>\n

ODM \/ OEM Export<\/h3>\n

ODM and OEM production programmes for automotive tier-1 and tier-2 suppliers worldwide. Vacuum tray packaging and express DHL\/TNT\/FedEx\/UPS delivery support just-in-time automotive supply chains in Europe, Japan, South Korea, North America, and Southeast Asia.<\/p>\n<\/p><\/div>\n<\/div>\n

<\/p>\n

Frequently Asked Questions<\/h2>\n
\n
\n

What is the smallest module and diameter available for automotive double helical gears?<\/p>\n

The standard range starts at \u03a63 mm outer diameter and module M0.15 \u2014 among the finest-pitch plastic gear production available. At M0.15, the tooth height is approximately 0.34 mm and the pitch circle diameter for 20 teeth is 3 mm, consistent with miniature instrument and sensor actuator drives. Confirm the specific module, tooth count, and material at enquiry stage; very fine-pitch double helical gear production in plastic requires specific tooling confirmation before production commitment.<\/p>\n<\/div>\n

\n
\n

Which material is recommended for under-bonnet automotive applications?<\/p>\n

Under-bonnet temperatures regularly reach 120\u2013150\u00b0C at peak and 80\u2013100\u00b0C continuously, with exposure to engine oil, coolant, and cleaning fluids. POM and standard PA are not adequate for sustained under-bonnet duty at these temperatures. PPA (polyphthalamide) is the standard automotive choice for under-bonnet plastic gear applications \u2014 it withstands 150\u2013170\u00b0C continuously and has low moisture absorption compared with standard nylons. PEEK is used where temperatures exceed PPA’s capability or where chemical exposure is severe. Korea Ever-Power’s engineering team can advise on material selection for specific under-bonnet duty cycles.<\/p>\n<\/div>\n

\n
\n

What meshing grade corresponds to AGMA 13 in DIN?<\/p>\n

AGMA and DIN use inverse numbering systems \u2014 higher AGMA number means higher accuracy; higher DIN number means lower accuracy. AGMA 13 is a high accuracy grade approximately equivalent to DIN 5\u20136. This meshing grade represents the practical accuracy ceiling for injection-moulded plastic gears produced with precision tooling and controlled process parameters. Achieving AGMA 13 \/ DIN 5 in plastic requires tight control of mould temperature, cooling rate, and gate location to minimise residual stress and dimensional variation. Korea Ever-Power’s automotive production process is designed to consistently achieve this accuracy level in POM, PA, PPA, and PBT.<\/p>\n<\/div>\n

\n
\n

Are ODM services available for automotive double helical gear programmes?<\/p>\n

Yes \u2014 Korea Ever-Power’s ODM service covers gear design, mould design, prototype production, and series production. For automotive OEM customers who have a functional requirement (load, speed, life target, operating temperature) but no finished gear drawing, the Korea Ever-Power engineering team will design the gear geometry and propose the mould concept for customer approval before tooling investment. This service has good knowledge of different automotive market requirements and can meet special requirements for noise level, backlash, and thermal stability specific to each automotive customer’s programme specifications.<\/p>\n<\/div>\n

\n
\n

What packaging and delivery service is used for automotive programme supply?<\/p>\n

Automotive double helical gears are vacuum-packed in plastic trays \u2014 the vacuum packaging prevents moisture absorption (critical for PA and PPA gears whose dimensions change with moisture content) and protects the gear tooth flanks from contamination and damage during transit. Express international delivery is by DHL, TNT, FedEx, and UPS, supporting just-in-time automotive supply chain delivery windows. For high-volume programmes, sea freight with tray-in-carton packaging is also available. Contact our team<\/a> to discuss packaging and logistics for your specific programme volume and delivery schedule.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Customer Reviews<\/h2>\n
\n
\n

“We supply window regulator mechanisms to an automotive OEM and switched from POM spur gears to POM double helical gears from Korea Ever-Power. The noise level at the OEM’s acoustic test bench dropped to below the programme target on the first evaluation sample. TS16949 certification was confirmed at supplier qualification and the vacuum tray packaging prevented the moisture-related bore dimension variation we had experienced with a previous unpackaged supplier.”<\/p>\n

Kim Dong-hyun<\/strong>  |  Component Engineer, Gyeonggi Automotive Actuator Systems  ·  Q1 2026<\/em><\/p>\n<\/div>\n

\n

“We design surgical robot wrist mechanisms and specified PEEK double helical gears<\/a> at AGMA 13 from Korea Ever-Power. The PEEK gears passed our autoclave sterilisation cycle test (134\u00b0C, 18 minutes, 50 cycles) with no measurable dimensional change. Meshing grade confirmed at incoming CMM check \u2014 all gears within AGMA 13 tolerance.”<\/p>\n

Lee Hyeon-seo<\/strong>  |  Robotics Component Engineer, Seoul Surgical Systems  ·  Q3 2025<\/em><\/p>\n<\/div>\n

\n

“We manufacture under-bonnet throttle position actuators and needed PPA double helical gears at M0.5, \u03a625 mm for a 140\u00b0C continuous duty cycle. Korea Ever-Power confirmed PPA was appropriate for the temperature, produced samples within the stated lead time, and provided the material data sheet confirming the thermal properties. Series production has run for 14 months with no field returns related to gear performance.”<\/p>\n

Park Seon-min<\/strong>  |  Powertrain Actuator Engineer, Incheon Automotive Electronics  ·  Q4 2025<\/em><\/p>\n<\/div>\n

\n

“We used Korea Ever-Power’s ODM service for a new seat adjustment mechanism \u2014 we had the packaging space and load requirement but no gear drawing. Their engineering team designed the gear geometry, proposed the DIN 6 accuracy target, and produced the mould concept within our development schedule. First-off samples confirmed to drawing at our incoming check. The vacuum tray packaging allows us to store parts for 6 months without moisture-related bore swelling.”<\/p>\n

Choi Tae-yang<\/strong>  |  Interior Systems Development Engineer, Daejeon Automotive Interiors  ·  Q2 2026<\/em><\/p>\n<\/div>\n

\n

“We import automotive plastic double helical gears for distribution to aircraft interior mechanism suppliers. AGMA 13 confirmed by CMM at our incoming inspection on every batch. Express FedEx delivery meets our just-in-time delivery window requirement. ISO 9001:2008 and TS16949 certificates provided with the first delivery and updated copies provided at each certification renewal.”<\/p>\n

Yoon Ji-su<\/strong>  |  Precision Parts Import Manager, Busan Aerospace Components Trading  ·  Q1 2025<\/em><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Related Products<\/h2>\n
\n
\n
\n \"Plastic
\n <\/a><\/p>\n
\n

Helical Gears<\/h3>\n

Korea Ever-Power’s plastic helical gear range covers single helical gears in POM and Nylon, automotive double helical gears in POM through PEEK, and steel double helical gears \u2014 all in the small-to-medium OD range for automotive and instrument applications.<\/p>\n

Browse Helical Gears \u2192<\/a>\n <\/div>\n<\/p><\/div>\n

\n
\n \"Industrial
\n <\/a><\/p>\n
\n

Ingranaggi conici<\/h3>\n

Plastic and metal bevel gears for right-angle direction changes in automotive HVAC drives, mirror actuators, and medical instrument mechanisms \u2014 the intersecting-shaft complement to automotive double helical gears.<\/p>\n

Browse Bevel Gears \u2192<\/a>\n <\/div>\n<\/p><\/div>\n<\/div>\n

\n

Request a Quotation for Automotive Double Helical Gears<\/h3>\n

Send drawing or application data. Specify material (POM\/PA\/PPA\/PBT\/PEEK), module, OD, meshing grade, and quantity. TS16949 certified. Vacuum tray packaging. Express DHL\/FedEx\/UPS delivery. ODM service available.<\/p>\n

Get a Quote Now<\/a>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Korea Ever-Power automotive double helical gears are precision-moulded or machined in engineering plastics \u2014 POM, PA (Nylon), PPA, PBT, PEEK \u2014 to customer specification. Dimension \u03a63\u2013\u03a6120 mm, module M0.15\u2013M2.2, meshing grade GB 6 \/ ISO 6 \/ AGMA 13 \/ DIN 5\u20136. ODM and OEM service. Applications: automotive actuators, medical devices, industrial automation, military, and aircraft mechanisms. Vacuum-packed in plastic tray. Express delivery by DHL, TNT, FedEx, UPS. ISO 9001:2008 \/ TS16949 certified. Samples available. The double helical (herringbone) plastic gear form eliminates axial thrust while delivering the smooth, quiet engagement of helical teeth \u2014 the optimal combination for compact automotive and instrument drives.<\/p>","protected":false},"featured_media":1518,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[4558],"product_tag":[],"class_list":["post-1517","product","type-product","status-publish","has-post-thumbnail","product_cat-helical-gear","pa_editor-cxm","first","instock","product-type-simple"],"_links":{"self":[{"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/product\/1517","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/comments?post=1517"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/media\/1518"}],"wp:attachment":[{"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/media?parent=1517"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/product_brand?post=1517"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/product_cat?post=1517"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/product_tag?post=1517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}