R Series. 3.7 N·m rated, 11 N·m peak, Ф106.8 mm, 731 g, 1:1 reduction, 48 V.
US$478.00
3.7 N·m rated and 11 N·m peak from a Ф106.8 mm, 731 g housed frame, direct drive on 48 V. Kv 90, 35 A continuous and 104 A peak, with Hall sensors built in. CubeMars lists it for heavy-load legged robots.
The largest of the R series, and the only CubeMars direct drive here that arrives as a finished motor: the Hall sensors, the bearings and the bore are already in it, where the frameless RI and RO rotors leave all three to you. There is no gearbox, so there is no backlash to take up and nothing in the drivetrain to wear. Mounting holes are left in the bell for a harmonic drive or a flange when the joint needs more torque than 11 N·m.
Import duty on US orders is on us. Freight is charged once per order, not per item, and shipping is free on orders of US$200 or more — see the rates.
| Reduction Ratio | 1:1 |
|---|---|
| Rated Torque (N·m) | 3.7 |
| Peak Torque (N·m) | 11 |
| OD (mm) | 106.8 |
| Weight (g) | 731 |
| Rated Voltage (V) | 48 |
| Continuous Torque Max Speed (RPM) | 3800 |
| Rated Current (A) | 35 |
| Peak Current (A) | 104 |
| Kv (RPM/V) | 90 |
| Kt (N·m/A) | 0.106 |
| Hall Sensor | Yes |
| Hall Electrical Angle | 120±20° |
| Rotor Type | Outer rotor |
| Driving Way | FOC |
| Application | Legged Robot |