RS485 Bus Brushless Servo Motor - Built-in Driver & 12-Bit Encoder

Outer Rotor Brushless Servo Motor – Salvaged Robot Chassis Drive Motor

Please read before ordering: these are salvaged units, sold as-is.

What we know about them

• Neodymium outer-rotor brushless servo motor, originally used as a robot chassis drive with tyres or wheels
• Built-in drive circuit with a magnetic encoder — 12-bit, nominally 4096 counts per revolution
• Nominally controlled over an RS-485 bus; nominal 6S battery voltage
• Outer rotor diameter about 65mm, with an oil seal on the rotor shaft
• Weight: approx. 200g, or 215g with a bracket
• Choose with or without a bracket

Test notes

With the internal drive removed, the motor can be run from a standard brushless ESC — tested at 12V–24V, no-load speed 490–980 rpm. Spun by hand, the outer rotor generates over 12V, so it may suit DIY generator projects.

Important: These are second-hand units removed from equipment. Some may show light white oxidation on the casing. We have not fully tested the RS-485 control function, we cannot guarantee the protocol details, and an RS-485 adapter board is required. No technical support is provided and the motors are sold on their physical condition, not on any guaranteed function — buy only if you are confident working this out yourself.