Product Description:

The MSK075D-0300-NN-M1-UP1-NNNN is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It provides electronically commanded rotary motion in automated packaging stations, pick-and-place units, and machining feed axes, where precise speed and position control are required. Integration of sensor feedback and an electrically released brake lets the motor hold load position when power is removed while still reacting quickly to drive commands. When paired with a compatible drive, it supports closed-loop motion on axes that must accelerate, stop, and reverse without losing positional consistency.

The frame follows the size code 075, which corresponds to the stator diameter and mounting pitch used across the series. Length class D uses an extended lamination stack so continuous torque can increase without changing the flange pattern. A shaft with keyway couples torque mechanically, and the standard design housing supports installation without additional sealing features. The winding code 0300 indicates the copper configuration used for compatibility with drives that supply the required voltage and current range. The unit is cooled by natural convection, so thermal energy leaves the surface through free airflow rather than forced ventilation. There is an electrically released holding brake that delivers 23 Nm of static torque, enabling load retention during emergency stops or power-off service. The keyed shaft provides secure torque transfer to couplings, pulleys, and similar drive elements used in standard machine assemblies.

Position feedback is handled by an Hiperface encoder that communicates absolute data to compatible servo drives over a bidirectional serial channel. The optical scanning principle yields 128 signal periods per mechanical revolution, permitting fine interpolation of shaft angle for tight loop correction. To maintain absolute position through multiple turns, the sensing system is multiturn absolute. A rotatable 240° connector allows the feedback cable to be oriented within the wiring tray, reducing strain during service. Because the sensing element is optical, magnetic interference from neighboring power conductors does not degrade the position signal. This feedback arrangement helps the drive maintain stable position information during repeated starts, stops, and direction changes.