MSK030B-0900-NN-S1-UG1-NNNN Bosch Rexroth Indramat
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MPN: R911308678
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The Bosch Rexroth Indramat MSK030B-0900-NN-S1-UG1-NNNN is a synchronous servomotor from the MSK IndraDyn S Synchronous Motors series. It features natural convection cooling, a plain shaft, and a standard design with motor size 030 and length B. The motor includes a singleturn optical Hiperface encoder with 128 signal periods and a rotatable encoder connector, and is equipped with an electrically released holding brake delivering 1 Nm of torque.
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Product Description:
The MSK030B-0900-NN-S1-UG1-NNNN is an IndraDyn S synchronous servomotor produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. Within multi-axis machinery, the unit drives a single servo axis by converting controlled electrical input from a compatible drive into precise mechanical rotation for positioning, tensioning, or feed functions in industrial automation. Its compact format also suits tightly spaced assemblies where low moving mass helps support quick direction changes and short cycle times.
This motor relies on natural convection cooling, so heat is carried away by ambient airflow without fans or liquid circuits. Its construction is the Standard version, indicating the frame uses the baseline mechanical layout used across the series. The electromagnetic characteristics are tied to winding code 0900, which sets the voltage constant and current loading expected by the matching drive. An electrically released holding brake supplies 1 Nm of static torque, allowing the axis to resist back-drive when power is removed. Length designation B indicates the active stack depth, which influences continuous torque output while preserving the compact 58 mm flange associated with this frame. The motor uses a smooth shaft without a keyway, providing a clean coupling surface for clamped hubs or collet connections and helping reduce hysteresis during bidirectional moves.
The feedback system uses a cable-mounted connector that is rotatable through 240°, easing cable routing in tight machine spaces. Position data travel over the Hiperface serial interface, allowing absolute position exchange and electronic nameplate functions with compatible Rexroth drives. Inside the encoder housing, an optical disk produces 128 signal periods per revolution, and the code wheel is read as a single-turn device, delivering one absolute position value for each full rotation. Optical scanning helps avoid magnetic jitter, and the 030 frame size keeps inertial load low on fast pick-and-place axes.
