Make / Motion parts / Gears
Gears 41 shops
| Manufacturer | Where | Also does | Size | Small runs | Quality | ||
|---|---|---|---|---|---|---|---|
| Circle Gear (Circle & Gear Machine Co.)gears — custom and standard spur, helical and spiral gears, tooth grinding, full machine shop, CMM inspection | US Cicero, Illinois | CNC milling | unknown | Yes, stated | ISO 9001 | ||
| Forest City Geargears — fine- and medium-pitch spur, helical, splines, worms; hobbing, shaping, gear grinding, 60+ CNC machines | US Roscoe, Illinois | CNC milling | unknown | Yes, stated | unknown | ||
| Gear Manufacturing Inc. (GMI)gears — build-to-order precision gears, gear grinding, in-house machining | US Anaheim, California | CNC milling | unknown | Yes, stated | ISO 9001 | ||
| Gear Motionsgears — custom spur, helical, bevel, worm, ground gears and gearboxes (Nixon Gear in Syracuse, Oliver Gear in Buffalo) | US Syracuse, New York | Motors & actuators | unknown | Yes, stated | unknown | ||
| Groschoppmotors — fractional-hp DC, brushless DC, AC and universal motors and gearmotors, modified and custom, built in-house | US Sioux Center, Iowa | Motors & actuators | 50–249 people | Yes, stated | ISO 9001 | ||
| Harmonic Drive LLCreducers — strain wave (harmonic) gearing, gearheads, hollow-shaft servo actuators; the category-defining robot-joint reducer | US Beverly, Massachusetts | Motors & actuators | unknown | Yes, stated | ISO 9001 | ||
| Helix Point SolutionSmall Penang precision-parts and jigs/fixtures maker doing custom machine parts, reverse-engineered replacements, first articles and prototypes from 1 unit. | MY Bukit Mertajam, Penang | CNC milling, CNC turning, Sheet metal | unknown | Yes, stated | ISO 9001 | ||
| Midwest Motion Productsmotors — brushed and brushless DC planetary and right-angle gearmotors, brakes, encoders, 12-120 VDC | US Howard Lake, Minnesota | Motors & actuators, Sensors & lidar | unknown | Yes, stated | ISO 9001 | ||
| Nordexgears and small power transmission — precision gears, gearheads, shafts, couplings; 35,000+ catalog parts plus custom | US Brookfield, Connecticut | — | unknown | Yes, stated | ISO 9001 | ||
| Precipartgearboxes and motion — custom miniature gears, gearboxes and gear motors (Farmingdale "Custom Gears & Motion Control" site) | US Farmingdale, New York | Motors & actuators | unknown | Yes, stated | ISO 9001 | ||
| Rush Gearsgears — custom spur, helical, bevel, worm gears, racks, sprockets made to drawing, with expedited production tiers | US Fort Washington, Pennsylvania | — | unknown | Yes, stated | unknown | ||
| Suzhou Gaersiwei苏州工业园区盖尔斯威智能科技有限公司Robot joint modules (KGU/EC/P-series) integrating self-developed frameless torque motors with harmonic/RV/planetary reducers and high-precision multi-turn absolute encoders; also distributes complementary Nabtesco RV reducers, Leaderdrive (绿的) harmonic reducers, and Shuanghuan RV reducers; catalog spans humanoid robots, quadruped "robot dog" platforms, medical robots, mobile robots, and semiconductor/electronics automation; example SKU: P85-S waterproof integrated joint; PRO-series lightweight joint claims one variant at 48N·m peak torque / 520g (92.3 Nm/kg torque density) | CN Suzhou, Jiangsu | Motors & actuators, Sensors & lidar | unknown | Yes, stated | unknown | ||
| Changzhou Prostepper Co., Ltd.Changzhou maker of stepper, DC stepper, BLDC and gearbox stepper motors with custom variants. | CN Changzhou, Jiangsu | Motor & coil winding | unknown | not stated | ISO 9001 | ||
| Ningbo Crotor Technology Co., Ltd. / CROTOR (Chinese name not printed on the pages read)micro DC and gear motor maker, N20 encoder variants; ISO 9001, 3C, VDE, CB | CN Ningbo, Zhejiang | Motors & actuators, Sensors & lidar | unknown | not stated | unknown | ||
| 深圳市科固技术有限公司 / Shenzhen Kegu Technology Co., Ltd.micro gear motors, N20 series with two-phase hall encoders | CN Shenzhen, Guangdong | Motors & actuators, Sensors & lidar | unknown | not stated | unknown | ||
| 深圳市科硕电机有限公司 / Shenzhen Keshuo Motor Co., Ltd.micro DC gear motors with own machining and mould shop; IATF 16949, ISO 13485, ISO 9001 shown | CN Shenzhen, Guangdong | CNC milling, Motors & actuators | unknown | not stated | unknown | ||
| DYD Motor Gearboxplanetary gearheads matched to NEMA17/23 steppers and small BLDCs; Chinese-price alternative to Wittenstein / Neugart for prototype robotics | CN Shenzhen, Guangdong | Motors & actuators | unknown | not stated | unknown | ||
| Ever-Power / Ever-Power Group (planetary gearboxes)precision planetary gearboxes matched to NEMA/IEC standard motor frames; also right-angle worm and cycloidal; very wide English catalog with online quoting | CN Hangzhou, Zhejiang | Motors & actuators | unknown | not stated | ISO 9001 | ||
| Fulling Motor江苏富兴电机技术股份有限公司Sino-German-Swiss JV (founded 1994/2001) making full-range servo motors (FL38SV–FL110SV, ~100W up to 1500–2000W at 48V/220VDC), frameless motors, servo hub/wheel-edge motors, robot joint modules, plus stepper and BLDC motor lines; drivers include standalone and integrated driver+motor units | CN Changzhou, Jiangsu | Swiss turning, Motors & actuators, Sensors & lidar | unknown | not stated | unknown | ||
| Jiangsu Wellrift Transmission Technology江苏威利福传动科技Precision planetary reducers — straight-tooth (WLF/WLE/WLFZ) and helical (AB/ABF/AD/ABR/ABFR/ADR) series; servo reducers; hollow rotary platforms (high rigidity, large load capacity, zero drift) for robot joints | CN Suzhou, Jiangsu | CNC milling, Motors & actuators | Under 10 people | not stated | unknown | ||
| Jiangsu Zhiyuan Jinggong江苏智远精工科技Precision planetary reducers — AB, ZPF, ZPX, PE, PX, ZPH series; servo planetary gearboxes; multi-section electric cylinders; also markets under the "德锐特/Deruite" brand | CN Wuxi, Jiangsu | Swiss turning, CNC milling, Motors & actuators | 50–249 people | not stated | unknown | ||
| JK Motor / Jkongmotor深圳市金开电机有限公司stepper motors (NEMA 8/11/14/17/23/34) with matched planetary gearheads; hybrid steppers with encoders; small-quantity samples through Alibaba | CN Shenzhen, Guangdong | Motors & actuators, Sensors & lidar | unknown | not stated | CE claim on site (issuer unverified) | ||
| Kegu Motorhybrid stepper motors, DC gear motors, BLDC gear motors; wide catalog, English site with datasheet PDFs; suits AGV drive-wheel and prototype robotics | CN Changzhou, Jiangsu | Motors & actuators | unknown | not stated | ISO 9001 | ||
| Leaderdrive绿的谐波China's largest harmonic-drive maker (~30-40% domestic market share); credited with breaking the Japanese HarmonicDrive/Nabtesco monopoly. Full strain-wave gear line (cup, flat/pancake, ultra-flat cup-shaped "LCD" flexspline) for robot joints, plus humanoid-robot rotary joint actuators, precision rotary (4th/5th-axis) tables, frameless servo motors, electro-hydraulic servo controllers. Public company, SSE STAR Market 688017.SH. | CN Suzhou, Jiangsu | CNC milling, Displays, Motors & actuators | 250+ people | not stated | unknown | ||
| Longze Intelligent Transmission Technology (Shenzhen)龙泽智能传动科技(深圳)有限公司Precision planetary reducers / planetary gear reducers — dedicated gearbox manufacturer. | CN Shenzhen, Guangdong | Motors & actuators | unknown | not stated | unknown | ||
| Moons' Industries (Shanghai)上海鸣志电器step and BLDC motors, integrated drives, precision gearing; Chinese motor manufacturer with strong US presence (Marlborough MA office) and NEMA-standard steppers widely stocked. Broader than the LeRobot/DAMIAO crowd — this is the "grown-up" small-frame motor supplier once a founder needs 500+ units with QC pedigree. | CN Shanghai, Jiangsu | Motors & actuators | unknown | not stated | ISO 9001 | ||
| MyActuatorRMD-X planetary-gear actuators, RH harmonic actuators, frameless motors — sold for exoskeletons, AGVs, humanoids, quadrupeds; the joint-module class a tabletop-robot founder buys instead of building. | CN Suzhou, Jiangsu | Motors & actuators | unknown | not stated | unknown | ||
| Nandedrive南德谐波传动科技Harmonic gear reducers for industrial/collaborative/humanoid robots; servo-motor harmonic reducers (positioned to replace 2nd/3rd-stage planetary reducers); smart integrated joints; e-scooter mid-drive units; AGV harmonic reducers. Proprietary "IA" tooth profile solves high-tooth gear-meshing interference; claims 40-60% simultaneous tooth engagement. | CN Suzhou, Jiangsu | Motors & actuators | unknown | not stated | unknown | ||
| RobotDiggMotion components for machine builders — BLDC servo motors with integrated driver, encoder and planetary gearbox, stepper motors with encoders, grippers | HK | CNC milling, Motors & actuators, Sensors & lidar | unknown | not stated | unknown | ||
| Sha Yang Ye IndustrialMicro gear motors, precision planetary and worm gearboxes, encoders and drivers | TW | Motors & actuators, Sensors & lidar | unknown | not stated | unknown | ||
| Shenzhen Chinadream Motor Technology深圳市国梦电机科技有限公司Brake-by-wire and automotive-grade actuator motors (EHB, EPB, EPS, AMT shift actuators, pump motors) — precision actuator motor maker; adjacent to robotics via its high-reliability geared-motor manufacturing. | CN Shenzhen, Guangdong | Motors & actuators | unknown | not stated | unknown | ||
| Shenzhen Constar Motion Technology深圳市德达兴驱动科技有限公司DC hollow-cup brushless geared servo motors — precision small-actuator motors used in robot joints and grippers. | CN Shenzhen, Guangdong | Motors & actuators | unknown | not stated | unknown | ||
| Shenzhen Hengdrive Technology深圳恒驱技术股份有限公司BLDC motors, hollow-cup motors, servo motors, and geared reduction motors with intelligent control — broad-line motor manufacturer. | CN Shenzhen, Guangdong | Motors & actuators | 250+ people | not stated | unknown | ||
| Shenzhen Sanxie Motor (3X Motor)深圳市三协电机有限公司Precision planetary reducers and servo geared motors; offers customization for non-standard specs up to 115mm diameter reducers — a small/mid gearbox house well suited to niche robotics quantities. | CN Shenzhen, Guangdong | Motors & actuators | unknown | not stated | unknown | ||
| Shenzhen Wanzhida深圳市万至达电机制造有限公司Hollow-cup motors, stepper motors, brushless DC motors, and geared motors — broad small-precision-motor catalog manufacturer, also named as a major upstream supplier in a Shenzhen humanoid-robot supply-chain industry report. | CN Shenzhen, Guangdong | Motors & actuators | unknown | not stated | unknown | ||
| Shenzhen Zhaowei Dexterous Hand Technology (ZWHAND)深圳市兆威灵巧手技术有限公司Humanoid-robot dexterous hands (6/17/20 DOF product lines) integrating precision reducers, brushless hollow-cup motors, magnetic encoders and controllers — one of the more advanced Chinese dexterous-hand specialists, backed by a large listed parent. | CN Shenzhen, Guangdong | Injection molding, PCB assembly (PCBA), Box build & final assembly | unknown | not stated | unknown | ||
| Suzhou Shuoxingda (Susinta)苏州硕星达精密传动Harmonic reducers (CS, HS series), RV reducers, planetary reducers (AB series), worm-gear reducers (NMRV, VF series), cam indexers. Also serves as China contract agent for Italian brands VARVEL, MGM motors, Motovario, SITI, Bonfiglioli. | CN Suzhou, Jiangsu | Motors & actuators | unknown | not stated | unknown | ||
| TT Motor (Shenzhen) Industrial Co., Ltd.深圳市天喆电机有限公司Brushless DC motors and geared-motor solutions (DC gear motor, DC brushless motor, DC brushless gear motor, DC coreless motor) across many size classes — a large, well-established general-purpose motor exporter, explicitly cites robots/drones among target applications. | CN Shenzhen, Guangdong | Motors & actuators | unknown | not stated | unknown | ||
| XBOTPARK (Songshan Lake International Robotics Industry Base)松山湖机器人基地 / 东莞松山湖国际机器人研究院有限公司Hardware/robotics startup incubator + supply-chain/manufacturing platform. Founded 2014 by **Prof. Li Zexiang (李泽湘, HKUST)**, Prof. Ping K. Ko (高秉强, former HKUST Dean of Engineering), and Prof. Gan Jie (甘洁, CKGSB) as a market-run, corporatized new-model R&D institution (东莞松山湖机器人产业发展有限公司, under which sits 松山湖国际机器人研究院). New Songshan Lake HQ campus opened ~Dec 2023: 98 mu (~6.5 hectares), 110,000 m² of building space, combining incubation, R&D, manufacturing, and living space ("硬科技创业梦工厂") | CN Dongguan, Guangdong | Motors & actuators, Sensors & lidar, Wireless modules | unknown | not stated | unknown | ||
| Xingongjukiang Robotics星工聚将（苏州）智能科技有限公司Integrated robot joint modules combining reducer + motor + dual encoders + driver in one housing, full-hardware FOC control, in-line variable gear ratio, torque coverage 10–500 N·m across XG70/XG80/XG90/XG110/XG142/XG170 model sizes; built for humanoid and collaborative-robot applications; also produces the Z1 wheeled humanoid robot (28 DOF) and a "G1" high-dynamic robotic arm as showcase end-products | CN Suzhou, Jiangsu | Enclosures, Motors & actuators, Sensors & lidar | unknown | not stated | unknown | ||
| 广东天孚电机科技有限公司 / Guangdong Tianfu Motor Technology Co., Ltd.micro DC motor factory, M10 to N30 and 030/050 lines, metal-gear N20 with hall encoder; custom development offered | CN Dongguan, Guangdong | Motors & actuators, Sensors & lidar | unknown | not stated | unknown |