Product Description:

The MSK071D-0450-NN-M1-UG2-NNNN is a synchronous servo motor built by Bosch Rexroth Indramat as part of the MSK IndraDyn S Synchronous Motors series. It serves as a rotary drive element for positioning axes and speed-controlled spindles in automated machinery, converting electrical energy from an inverter into precise mechanical torque and motion. In closed-loop operation, the motor responds quickly to commanded current so machines can maintain stable speed and accurate positioning during changing loads.

Its feedback system combines a Hiperface interface with an optical scanning method that generates 128 signal periods per mechanical revolution, allowing high-resolution position reporting to the drive controller. Because the encoder is multiturn absolute, the motor transmits true shaft angle information across multiple turns without a homing routine after power loss. The sensing method is optical, so position data are derived from light patterns rather than magnetic markers. A rotatable 240° connector lets the feedback cable exit in different directions for easier routing. Cooling is provided by natural convection, so heat is carried away by ambient airflow without an attached forced-cooling device. Winding code 0450 identifies the electrical characteristics used by the paired drive, and the motor is intended for free-air installation.

The electrically released holding brake supplies 30 Nm of static torque so vertical or indexing axes remain locked when the inverter is disabled. Torque is transmitted through a plain shaft without a keyway, enabling shrink-fit or clamp-hub couplings that minimize concentricity error. The motor uses frame size 071 with length code D, a combination that fits medium-power applications where compact installation space is important. A standard housing design and the rotatable connectors make cable routing more flexible in tightly arranged machine layouts.