cycloidal gear reducer / coaxial / high-performance / low-noise
HM series Varitron Eng. (Taiwan) Co. Ltd



  • Type:


  • Shaft orientation:


  • Performance:

    high-performance, low-noise, for heavy loads, high-torque, high-efficiency

  • Other characteristics:

    industrial, transmission, for servo motors, gearbox, multi-stage

  • Torque:

    Max.: 36,800 Nm (27,142.2871

    Min.: 12 Nm (8.8507

  • Rotational speed:

    Max.: 400 rpm (2,513.27 rad.min-1)

    Min.: 0 rpm (0 rad.min-1)

  • Power:

    Max.: 132 kW (179.47 hp)

    Min.: 0.37 kW (0.5 hp)


The VARITRON® Cycloid Drive unique cycloid gear design has advantages superior to speed reducers using common involute tooth gears. The key to VARITRON®'s Cycloid Drive matchless performance and reliability is that 67% of the reduction components are in contact at all times, compared to helical gear and planetary gear designs that use only limited tooth contact. Unlike geared designs, the Varitron®'s reduction components operate in compression rather than shear, which results to withstand shock loads exceeding ratings of 500%, provide exceptional performance, reliability and long life in most severe applications.