Kaiserdrive KGU-08B Harmonic Integrated Joint Module (6 N·m rated)
Vendor: Kaiserdrive
Product: KGU-08B
Jiangsu Kaiserdrive (subsidiary of Leaderdrive Harmonic Drive, STAR-688017) KGU robot joint module, model KGU-08B: 6 N·m rated / 12 N·m max torque, 43/68 rpm rated/max speed, 30 W rated power, 48VDC, ratio 1/81. Integrated harmonic reducer + frameless torque motor + built-in EtherCAT/CANopen servo driver + dual 20-bit single-turn absolute encoders (BiSS-C), 69 arcsec positioning / 15 arcsec repeatability, Φ6.5mm hollow shaft, Φ52×56mm envelope, only 0.35kg, optional power-off holding brake. For lightweight humanoid-arm joints (payload/weight ratio near 1:1); smallest joint under 350g.
| Bus | EtherCAT / CANopen |
| Model | KGU-08B |
| Weight | 0.35 kg |
| Encoder | 20bit （BiSS-C） |
| Reducer | （ 1/81） |
| Voltage | 48VDC（ 24VDC） |
| Dimensions | Φ52×56 mm |
| Gear Ratio | 1/81 |
| Peak Speed | 68 rpm |
| Protection | （F ） |
| Peak Torque | 12 N·m |
| Rated Power | 30 W |
| Rated Speed | 43 rpm |
| Vendor Site | https://www.kaiserdrive.com |
| Hollow Shaft | Φ6.5 mm |
| Rated Torque | 6 N·m |
| Repeatability | 15 arcsec |
| Positioning Accuracy | 69 arcsec |