Low backlash planetary and helical-bevel servo gear units are available with input speeds of up to 6000 rpm with 15 integer ratios from 3 to 100 and circumferential backlash as low as 1 arc-min. Small, lightweight PSC, PSF and BSF gear units span ranges of 25–3000 Nm of torque in 18 different models. These units are available with input adapters to accept most any servo motor or can be mounted directly on SEW’s dynamic synchronous DS, CM and CMP servo motors.
