CubeMars RI100 KV105 Robot Joint Motor

The T-Motor CubeMars RI100 KV105 is a frameless brushless inrunner motor built for high-precision robot joints, such as cobots, exoskeletons, quadruped robots and robotic arms, where compact torque density matters more than raw speed.

Key features

• Integrated Hall sensor gives precise position feedback for FOC (field-oriented control) drives.
• Delivers 1.76 Nm rated torque and 4.95 Nm peak torque at 13.6 A rated / 38.6 A peak current.
• Runs from 24V, 36V or 48V supplies, with rated speeds of 1370, 2100 and 2825 RPM respectively.
• 14 pole pairs and a delta winding give smooth, low-noise, efficient operation.
• Compact frameless format: 104 mm diameter x 26 mm length, 500 g.

Specifications

• Motor type: Frameless brushless inrunner, with Hall sensor
• KV: 105 RPM/V
• Rated / peak torque: 1.76 Nm / 4.95 Nm
• Rated / peak current: 13.6 A / 38.6 A
• Voltage range: 24-48 V
• Size: Ø104 x 26 mm
• Weight: 500 g

Pair it with an FOC motor driver rated for its current and voltage, and confirm the joint's mechanical interface and the sensor cable pinout before integration.