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STSR Series Frameless Torque Motors

Our STSR series of frameless torque motors are ideal for direct-drive applications, as well as highly integrated precision gear drive applications. Motors are available in various winding options for compatibility with voltages from 24 to 350 volts.

These motors are low profile and offer a large aperture to house mechanical parts, wire feedthroughs, slip rings, or internal magnetic brakes. With optimized pole and slot counts, these motors have minimal cogging torque without a skewed magnetic field.

Modified or custom solutions of STSR torque motors are available to meet application-specific demands. Contact us to discuss your project today.

The STSR series frameless motors performance is summarized below.

Specifications Overview

  • Frame Size (mm)
    38 - 165.1
  • Inner Diameter (mm)
    15.5 - 119.3
  • Overall Length (mm)
    18 - 37.7
  • Bus Voltage (VDC)
    48
  • Rated Torque (Nm)
    0.17 - 6.16
  • Rated Speed (RPM)
    330 - 16,981
  • Rated Power (W)
    122.5 - 1,145

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