Product Description:

The QSK061C-0300-NN-M5-UG1-NNNN is a synchronous servo motor produced by Bosch Rexroth Indramat within the QSK Servo Motors series. It delivers closed-loop torque, speed, and position control for industrial axes that require repeatable accuracy, allowing CNC tables, pick-and-place modules, and automated assembly stations to follow drive commands without lash or overshoot. An electrically released holding brake is integrated so vertical loads can be secured when power is removed, and the plain shaft is equipped with a sealing ring to limit oil or coolant ingress at the drive end.

The motor housing uses the 061 frame size and C frame length, while its stator uses the 0300 winding configuration so thermal rise and current demand match medium-power inverter outputs. Rotor position is captured by an optical feedback system that yields 128 discrete measuring steps per mechanical turn, supporting tight servo loops in high-gain applications. Position data are exchanged over the Hiperface protocol, which superimposes digital angle information onto analog sine-cosine tracks. The use of an optical scanning method reduces drift because light pulses are not affected by magnetic saturation, and the multi-turn counter stores revolutions even when line power is disconnected.

Field wiring reaches the stator through a 240° rotatable plug so cable exit can be aligned with cabinet routing paths. Heat generated in the slots is removed by natural convection, so no external fan or liquid jacket is required. The encoder uses a multi-turn absolute design and keeps its count across 4096 shaft revolutions, eliminating homing cycles after shutdown. When the machine is idle or in a fault condition, the brake can clamp up to 10 Nm of static holding torque so the axis remains stationary without energizing the windings.