M100 Brushless Motor


The M100 is a rugged brushless motor for use in the ocean and in extreme environments. It has the same internal components as the T100 Thruster.

In stock

HS Code: 8501.31.4000

Product Description

The M100 Brushless Motor is a simple motor version of the T100 Thruster.

It uses the same internal components but doesn’t have the plastic nozzle or other components.


  • Waterproof brushless camera gimbals
  • Underwater actuators
  • Build your own thruster
  • Small ROVs that don’t need full size thrusters


  • Efficient brushless electric motor
  • Standard mounting holes spaced 19mm and 16mm apart
  • Rugged design for use in extreme environments
  • Operates under extreme pressure and depth
  • High-performance plastic bearings that don’t corrode
  • Solder pads to connect and seal wires


  • 1 x M100 Brushless Motor


Torque10.28 N m2.5 in-lb
RPM/V (Kv Rating)540 RPM/V
Operating Voltage6 - 16 V
Max Power135 Watts
Max Current12.5 Amps
Mounting Hole ThreadsM3 x 0.5
Weight in Air90 g0.2 lb

1 Torque is provided as the theoretical maximum based on the motor design. This torque can only be achieved at all speeds with the proper motor controller. These numbers have not been validated experimentally.

Performance Charts

This performance information is given using the 3D printed M100 Propeller

2D Drawings

3D Models

M100-ASM-R1 (.zip)

Revision History

7 November 2014

  • R1 – Initial Release

Quick Start

1. Solder wires from ESC to pads on motor

2. Waterproof solder connection with epoxy or potting compound. We recommend using Loctite Marine Epoxy or MG Chemical 4229.

3. Connect the wires to an ESC, send a signal, and the motor will start spinning. That’s it!


It is strongly recommended to insulate the motor. Over time, without insulation, the wires will begin to show signs of corrosion.

Do not operate the motor for extended periods out of water, the bearings are lubricated by the water. Vibrations and noise will be greater when dry.


User Manual

Soldering wires to a M100/M200 (YouTube)


M100/M200 Troubleshooting


Blue Robotics Forums – Thrusters and Motors