Traction Drive Type B
Traction Drive Type B
Traction Drive Type B
  1. Traction Drive Type B
  2. Traction Drive Type B
  3. Traction Drive Type B

Traction Drive Type B

Traction Drive Type B for High-Precision Industrial Motion Control

Traction Drive Type B is designed for industrial automation systems requiring ultra-smooth rotation, high positional accuracy, and stable torque transmission. Serving as a precision alternative to conventional gearing technologies, Type B enhances motion quality in applications where vibration, backlash, and settling time directly affect machine performance.

Built on traction drive rolling-contact principles, Type B minimizes mechanical wear while delivering consistent motion with low noise and exceptional rotational stability. When integrated with servo control systems, the design enables near-zero backlash and improved dynamic responsiveness, supporting precise positioning and repeatable performance.

Traction Drive Type B is well suited for precision machinery, inspection equipment, semiconductor manufacturing systems, and advanced automation environments where motion smoothness and accuracy are critical to process reliability.

Frame Sizes

B, C, D
Traction Drive Brochure Download

Primary Advantages of the Traction Drive

Negligible Transmission Error

  • Smooth rolling contact allows for negligible transmission error
  • Eliminates speed irregularity inherent in gear transmissions
  • Great fit in application where the angular velocity ratio is important

Minimal Noise Generated

  • Removal of the gear mesh minimizes noise and vibration
  • The noise generated will be in the 40–50 dB-A range
  • In comparison to gear transmissions which generally fall in the 60–80 dB-A range

 

Why technology is referred to as the “gearless gearbox?

The traction drive is a non-gear reduction technology that minimizes vibration and noise. The negligible transmission error makes it the smoothest and most quiet method to mechanical adjust speed and torque. The following a brief explanation.

  • The traction drive assembly consists of two smooth rollers held in fixed position with mechanical properties that include high hardness
  • (Fn) Power is transmitted from the driven roller to the passive roller through viscous film
  • When under pressure, this oil film will have a higher friction coefficient
  • The speed differential between the rollers creates a tangential force (traction force, Ft) that shears the oil film
  • The reduction ratio is determined by diameter of inner ring that contains the roller assembly and the number of planetary rollers, among other minor factors
  • When the normal force (Fn) is deficient slippage can occur; we can control through close loop feedback

Well Suited for Fine Precision

The traction drive is a non-gear reduction technology that minimizes vibration and noise. The negligible transmission error makes it the smoothest and most quiet method to mechanical adjust speed and torque. The following a brief explanation.

  • Very low noise and vibration for input speeds up to 10,000rpm
  • Exceptional rotation al accuracy and fine precision of <5 arc-sec
  • Extremely compact and achieves up to a 20:1 reduction ratio in a single stage
  • Currently available in frame sizes up to 1kW; all designs are customized for the OEM
  • A potential technological improvement in many applications such as the following; Collaborative or mobile service robots, High quality imaging or high speed printing, 3D printing or precision measurement, and Medical equipment or mobility assist

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