KOFON KBG-HO-20-100 High-Torque Hollow Hat-Type Strain-Wave Reducer
Size-20 100:1 high-torque hat-type harmonic reducer with a hollow cam carried on two ball bearings, usable as a standalone reducer; from Hubei planetary-gearbox maker KOFON.
Specifications
| Ratio | 100:1 |
|---|---|
| Rated torque | 52 N·m at 2,000 rpm input |
| Peak torque (repeated / momentary) | 107 N·m repeated (start/stop) / 191 N·m momentary |
| Backlash | lost motion <1 arcmin (≤60 arcsec), maker spec |
| Outer diameter | unknown |
| Hollow shaft | yes (hollow-shaft cam, HO series) |
Who makes it
Need a different shaft, connector, firmware or enclosure, or a price at 1,000 units? Maglev takes the catalog part to the factory and comes back with a custom version and one fixed price.
Landed cost in the US
Total US duty on this part by where it is made (2026-10-29). Mexico shown before USMCA preference; qualifying goods enter duty free. Your factory choice, not the shipping port, sets the origin.
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Compliance
| HTS classification | 8483.40.50.10 |
|---|---|
| NDAA | unknown |
| Blue UAS | unknown |
| FCC | n/a |
| Notes | Maker page gives max input speed 4,500 rpm and lost motion (空程) <1 arcmin; it does not state a separate backlash figure. Page in Chinese only; English site returned 403. |
Equivalents from other makers
Sources
- https://www.kofon.com.cn/products_detail/31.htmlKB/KBG-HO tables: size 20, ratio 100 rated torque at 2,000 rpm, peaks, accuracy
Record confidence: VERIFIED. VERIFIED means the maker's own documents; REPORTED means a credible third party; UNVERIFIED means a single weak source. Anything we could not confirm says unknown.