Parts · Reducers (Harmonic, Cycloidal)
Spec fields are defined per category first; parts are added once their sources are checked.
Companies making these parts 8
| Company | Region / HQ | Part categories | What they make | Checked figures (as stated) | Sources |
|---|---|---|---|---|---|
| Leaderdrive 绿的谐波 |
China Suzhou |
Reducers (Harmonic, Cycloidal) Actuators & Servos Motors & Drives | Specialises in strain wave (harmonic) gears; also makes rotary actuators, frameless torque motors and rotary tables. | More than 300,000 strain wave reducers sold in 2025 (company figure) Domestic market share 60%+ (company claim, basis not stated) |
Leaderdrive — Home ↗ Checked 2026-10-16 Leaderdrive — Contact (Suzhou) ↗ Checked 2026-10-16 |
| Zhongda Leader 中大力德 |
China Ningbo |
Reducers (Harmonic, Cycloidal) Motors & Drives | A drivetrain maker of robot reducers, planetary gearboxes, gear motors and drives. | Unverified | Ningbo Zhongda Leader — Home ↗ Checked 2026-10-16 |
| Shuanghuan Driveline 双环传动 |
China Hangzhou (management HQ) |
Reducers (Harmonic, Cycloidal) | A gear maker whose subsidiary Finemotion builds RV reducers (its main product) and harmonic reducers for industrial robot joints. | Reducers for robots with 3–1000 kg payloads Close to 25% of China's robot RV reducer market as of Dec 2024 (subsidiary's claim) |
Zhejiang Shuanghuan Driveline — Home ↗ Checked 2026-10-16 Finemotion (环动科技) — About ↗ Checked 2026-10-16 |
| ZHAOWEI 兆威机电 |
China Shenzhen |
Motors & Drives Grippers & End Effectors Reducers (Harmonic, Cycloidal) | A micro gear-motor and planetary gearbox maker that builds the ZWHAND robot hand (17 active DoF). | ZWHAND: 17 active DoF | ZHAOWEI — Home (Shenzhen) ↗ Checked 2026-10-16 ZWHAND — About ↗ Checked 2026-10-16 |
| Harmonic Drive Systems ハーモニック・ドライブ・システムズ |
Japan HQ Unverified |
Reducers (Harmonic, Cycloidal) Actuators & Servos | Makes Harmonic Drive® strain wave gears and compact actuators built around them, such as FHA-C mini. | Unverified | Harmonic Drive Systems — English site ↗ Checked 2026-10-16 |
| Nabtesco ナブテスコ |
Japan HQ Unverified |
Reducers (Harmonic, Cycloidal) | A machinery components company with precision reduction gears as one of its main businesses. | Unverified | Nabtesco — Corporate site (Our Business) ↗ Checked 2026-10-16 |
| FAULHABER | Europe Schönaich, Germany |
Motors & Drives Reducers (Harmonic, Cycloidal) Actuators & Servos | Makes small DC, brushless DC, stepper and linear motors, precision gearheads and linear actuators, and lists humanoid robots among its applications. | Unverified | FAULHABER — About us ↗ Checked 2026-10-16 |
| WITTENSTEIN | Europe Igersheim, Germany |
Reducers (Harmonic, Cycloidal) Motors & Drives Actuators & Servos | Makes servo gearboxes, servo motors, servo actuators and rack-and-pinion systems. | Unverified | WITTENSTEIN — Home (Igersheim address) ↗ Checked 2026-10-16 |
Standard spec comparison
| Name / model | Brand | Part number | Reducer type | Gear ratio | Rated torque | Backlash | Size / frame | Weight | Obsolete / replacement | Compatible robots | Datasheet | Checked |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No parts listed yet. Parts are added to this table once their sources are checked. | ||||||||||||
Coming soon. We are checking official sources before adding entries. Know an official document or provider? Let us know.
Submit infoWhat each entry will include
- Name / model
- Brand
- Part number
- Compatible robots / models
- Datasheet / official doc (source)
- Obsolete / replacement
- Verified date
- Reducer type
- Gear ratio
- Rated torque
- Backlash
- Size / frame
- Weight
Every entry shows an official source link and the date it was checked. Values without a source are not listed.
Part No. & compatibility → Manuals & datasheets → Where to buy →
Discussion
Evidence links help verification. A single person's claim is never applied on its own.
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