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Brushless Frameless Motors


Frameless Motors (FMI) by Rozum Robotics are compact, powerful motors ready for easy integration into your next design. Available in sizes ranging from 41mm to 75mm diameter and weighing as little as 90 grams, our brushless motors are smaller, lighter, and far less expensive than comparable products on the market today.


Low Voltage




Rozum’s proprietary frameless DC motor, is at the heart of our Rdrive series of housed motors. We coupled the motor with two absolute magnetic encoders for feedback and a controller to orchestrate motion control. In addition, we provided a hollow shaft for smooth integration and to provide for maxim design flexibility. With a built-in strain- wave gearheads from Harmonic Drive, Shimpo or Cone Drive exponentially increases power to the Rdrive, enabling it to convert the high-speed and low-torque motor energy into low-speed and high-torque output. The majority of the components (frameless DC motors, controllers, and encoders) that comprise our motors are engineered and manufactured by us using the strictest production standards, and guaranteed to work to your exacting specifications.


  • Medicine
  • Robotics Projects
  • Industrial Equipment
  • Moving Elements
  • Pumps, Compressors, etc.

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