FEETECH SM40BL-C001 Servo Motor

The SM-40BL-C001 is a high-performance 12V 40kg RS485 serial control BUS servo engineered with a durable brushless motor and a 353:1 steel gear ratio. Built in a robust aluminum case with dual ball bearings and a 25T (OD5.96mm) horn gear spline, this intelligent servo delivers a peak stall torque of 40kg.cm at 12V, a no-load speed of 65RPM (0.153sec/60°), and an idle current of 40mA. Utilizing a half-duplex asynchronous serial communication protocol with IDs ranging from 0 to 253 and communication speeds up to 1Mbps, it offers precise 360° running degree (0–4095 steps) in clockwise rotation. The servo provides comprehensive real-time telemetry feedback monitoring load, position, speed, input voltage, current, and temperature, while operating reliably within a temperature range of -20℃ to 80℃.

Common use cases: Heavy-duty industrial robot arm joints requiring RS485 bus communication with brushless motor durability, precision automation end-effectors, collaborative robot (cobot) joints, large-scale humanoid robot hip and knee joints, and applications demanding 40kg.cm torque with 353:1 gear ratio over RS485 networks at 12V.