Product Description:

The MSK075E-0450-NN-M2-UG1-RNNN is a synchronous servo motor produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. The unit supplies tightly regulated rotary motion for automation equipment where coordinated positioning, velocity tracking, and repeatability are required in continuous-duty industrial environments. It is suited for packaging, handling, and transfer systems that depend on smooth servo response during frequent starts, stops, and speed changes. The motor uses size 075 with length code E and winding code 0450, which keeps its mechanical and electrical dimensions consistent for modular axis designs.

This motor relies on natural convection to carry heat away from the stator, so enclosure fans or liquid jackets are not needed. Position feedback is handled by an optical encoder that communicates through the EnDat2.1 interface; within the stator, the glass scale generates 2048 signal periods per revolution, giving the drive controller fine incremental data for closed-loop control. The encoder connector can be turned through 240° to simplify cable runs inside the machine frame. An electrically released brake supplies 23 Nm of holding torque to lock the shaft when the servo is de-energized, preventing unwanted drift on vertical or overhung loads. For protection, the housing meets the IP65 rating and blocks dust ingress as well as low-pressure water jets encountered during washdown or coolant splash.

The feedback device records full rotations in a multiturn absolute format, so absolute position is retained after power loss without external batteries. This lets the connected drive recover the shaft position immediately after startup, which is useful on axes that cannot be re-homed during every cycle. The motor is supplied with a plain shaft for backlash-free coupling to precision gearboxes or belt pulleys, and rotor machining uses increased concentricity to minimize runout. Operation is permitted between 0–40 °C, matching typical cabinet or open-machine ambient conditions, while class 155 insulation allows winding temperatures above that range before thermal derating becomes necessary.