QSK075E-0300-NN-M5-UG0-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat QSK075E-0300-NN-M5-UG0-NNNN is a synchronous servo motor from the QSK Servo Motors series. It features a rotatable plug connection at 240 degrees and uses natural convection for cooling. The motor is equipped with a Hiperface optical multiturn-absolute encoder and has a plain shaft with a shaft sealing ring.
Internal Product Review
The QSK075E-0300-NN-M5-UG0-NNNN is a Bosch Rexroth Indramat synchronous servo motor suited for precise motion applications. A multiturn-absolute encoder with Hiperface interface supports accurate position control and dependable servo integration. The rotatable 240° plug connection adds installation flexibility, making the motor a strong fit for clean, efficient machine builds.
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Product Description:
The QSK075E-0300-NN-M5-UG0-NNNN synchronous servo motor is produced by Bosch Rexroth Indramat as part of the QSK Servo Motors series. Designed for closed-loop motion control, it converts three-phase drive current into precisely controlled shaft torque, allowing automated machinery to position loads with millisecond-level repeatability. The compact 75 mm frame conserves installation space while providing the dynamic response needed for indexing tables, pick-and-place heads, and electronic camming functions in automated production lines. Its synchronous design supports accurate speed and position regulation when paired with a compatible drive controller.
The motor housing has frame size 075 and an extended E frame length, providing a deeper magnetic circuit for higher continuous torque density. Its internal windings use the 0300 winding configuration, which matches the current limits of compatible IndraDrive units. A plain shaft with a sealing ring accepts clamping couplings while helping prevent contaminants from entering the motor. Power and feedback conductors terminate in a plug that rotates through 240°, allowing the connector to pivot and reduce cable strain. Heat generated in the stator is transferred to the surrounding air through natural convection, eliminating the need for a fan but requiring clear airflow around the housing fins. Because the unit is supplied with no holding brake, vertical axes must rely on an external lock or drive-generated torque to secure loads when power is removed.
Rotor position is captured by an integrated feedback assembly that uses optical scanning to detect fine gratings on a coded disk. The sensor delivers 128 sinusoidal increments per electrical revolution, which the drive interpolates to achieve precise velocity and position control. Measurement and parameter data are exchanged through the Hiperface protocol, carried in the same hybrid cable that supplies logic power to the encoder and reduces the amount of required wiring. The multi-turn absolute feedback retains a complete revolution count across power cycles, allowing motion to resume after an emergency stop or maintenance shutdown without requiring a homing routine. This retained position data also helps the controller determine the shaft location immediately after power is restored.
