Traction Drive Reducers

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Nidec DTC has a few different series of traction drive utilizing different differential designs (traditional cone-cam mechanism, planetary roller system, etc.).

The Traction Drive mechanism produces smooth rotation and eliminates speed irregularity due to the high frequency vibration inherent in gear transmission. This is how the traction drive provides high rotational accuracy with low noise. Transmission through either cones or planet rollers being contacted under pressure allows the system to eliminate backlash when paired with full closed loop control. This allows the differential to approach zero backlash and achieve extremely high positional accuracy. The traction drive technology, in summary, provides many benefits over your traditional planetary gear reducer, such as Capable of handling higher input (>6,000 rpm, no problem) and output speeds, Exceptionally smooth rotation for better speed control, Higher reduction ratios in the 1st stage, Variable speed output, Much lower backlash (to the arc-sec)