Product Description:

The MSK075E-0300-NN-M2-UG2-RNNN is an IndraDyn S synchronous servo motor developed by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. Within an automated cell, this motor converts drive controller output into precise mechanical motion for positioning, feed, or spindle axes that demand high torque density and accurate feedback. Its output shaft couples directly to gearboxes or couplings, and the integrated encoder streams absolute position data to the drive so closed-loop regulation remains stable during rapid cycling.

The unit removes heat through natural convection, a passive method that simplifies cabinet layout by eliminating external blowers. An electrically released holding brake supplies 30 Nm of static torque to secure vertical loads whenever bus power is removed. Feedback is transmitted over the EnDat2.1 digital interface, allowing high-speed transfer of position, diagnostic, and temperature data on a single shielded cable. Inside the encoder, an optical scale yields 2048 signal periods per revolution, supporting interpolation in the drive for very fine resolution. The housing is sealed to IP65, protecting the windings and bearings against dust ingress and water jets encountered on machining lines or packaging conveyors.

The optical sensor tracks turns beyond one revolution using a multi-turn absolute mechanism, eliminating the need for homing after power interruptions. A smooth plain shaft avoids keyways that could introduce imbalance and complements the motor’s increased concentricity design. With a frame size of 075 and length code E, the stator stack provides a torque-to-mass ratio that matches mid-range drive modules assigned the winding code 0300. The rotatable 240° connector eases cable routing in compact enclosures, and the insulation system is rated for class 155 operation. All components are rated for continuous duty within an ambient range of 0–40 °C, provided unobstructed airflow is maintained.