QSK075C-0300-NN-M5-UG1-NNNN Bosch Rexroth Indramat
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MPN: R911325044
The Bosch Rexroth Indramat QSK075C-0300-NN-M5-UG1-NNNN is a synchronous servo motor from the QSK Servo Motors series that features natural convection cooling and a frame size of 075 with a frame length C. It has a rotatable plug connection, an electrically-released holding brake with a torque of 23 Nm, and uses a multiturn-absolute optical encoder with Hiperface interface and 128 increments.
Internal Product Review
The QSK075C-0300-NN-M5-UG1-NNNN is a synchronous servo motor that stands out for natural convection cooling. The optical encoder and Hiperface interface support accurate feedback and dependable motion control. A rotatable 240° plug simplifies cabinet routing, and the 23 Nm holding brake is a strong finishing detail.
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Product Description:
The QSK075C-0300-NN-M5-UG1-NNNN belongs to the QSK Servo Motors series from Bosch Rexroth Indramat. As a synchronous servo motor, it converts commanded current into precise rotary motion for positioning axes in industrial automation. The unit uses a plain shaft with a shaft sealing ring for direct coupling to the load, and an electrically released holding brake helps keep the axis in place when power is removed. This arrangement supports controlled stopping and stable holding on axes that must remain fixed between motion cycles.
A plug that rotates through 240° simplifies cable routing in cramped cabinets by letting power and feedback conductors exit in a more convenient direction. Cooling is provided by natural convection, so the motor dissipates heat without external fans and avoids added airflow hardware around the machine. The optical encoder produces 128 increments per revolution, giving the drive the feedback needed for stable speed regulation. Feedback is transferred over the Hiperface interface, which carries position data with reduced cabling complexity. The sensor uses optical scanning, which provides clean signal quality and good resistance to magnetic interference from nearby switching equipment.
The encoder has a multi-turn absolute design, so absolute position is available immediately after power-up without a homing move. During downtime, the brake supplies 23 Nm of static torque to hold the axis when motion is not permitted. The motor has a frame size 075 with frame length C, which suits installations that need a compact housing depth. Internally, the stator uses a 0300 winding, matching the electrical characteristics expected by compatible QSK drives. This combination supports consistent current delivery and predictable motor response during positioning and speed-controlled operation.
