MSM031B-0300-NN-M0-CH1 Bosch Rexroth Indramat
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MPN: R911325136
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The Bosch Rexroth Indramat MSM031B-0300-NN-M0-CH1 is a synchronous motor from the MSM IndraDyn S Synchronous Motors series. It features a multiturn absolute encoder and an electrical release holding brake with a torque of 1.27 Nm. The motor has a continuous standstill torque of 0.64 Nm and uses natural convection for cooling.
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Product Description:
The MSM031B-0300-NN-M0-CH1 is a synchronous motor manufactured by Bosch Rexroth Indramat and assigned to the MSM IndraDyn S Synchronous Motors series. The unit operates as the rotary element in low-to-medium power automation, supplying closed-loop torque and speed control when paired with an IndraDrive amplifier. By combining compact stator windings with permanent magnets, it provides repeatable positioning for indexing tables, small handling modules, and ancillary machine axes. Its compact format supports servo tasks in equipment where axis spacing is limited and dependable response is required over frequent start-stop cycles. That makes it suitable for auxiliary axes in machines where available mounting space is tightly controlled.
At standstill, the motor can deliver 0.64 Nm of continuous torque without thermal overload. Heat generated during this duty is dissipated solely through natural convection, so no external fan or liquid circuit is necessary and surrounding airflow remains uncomplicated. Power and feedback conductors exit through a cable tail, which helps when routing connections through tight electrical cabinets or narrow machine passages. Rotor position is monitored by a multi-turn absolute encoder, allowing the drive to track more than one mechanical revolution without battery support. The integrated holding brake is electrically released, meaning it engages mechanically when power is removed and disengages when current is supplied.
During shutdown or vertical-axis dwell, the brake supplies 1.27 Nm of static torque to secure the load. The motor has motor size 031, which corresponds to the nominal stator frame and flange pattern, while length code B gives it a moderate stack height that balances compact dimensions with stable inertia during repeated starts and stops. It has a plain shaft and no shaft seal, so the installation should limit exposure to contaminants, direct fluid contact, and heavy washdown conditions. The stator uses winding code 0300, which matches the electrical characteristics expected by compact IndraDrive controllers for responsive servo operation.
Frequently Asked Questions about MSM031B-0300-NN-M0-CH1:
Q: What type of brake is used on the MSM031B-0300-NN-M0-CH1 motor?
A: The MSM031B-0300-NN-M0-CH1 motor uses an electrical release brake.
Q: What encoder type is included with the MSM031B-0300-NN-M0-CH1 motor?
A: This model features a multiturn absolute encoder for position detection.
Q: What is the holding brake torque of the MSM031B-0300-NN-M0-CH1?
A: The holding brake on this motor provides a torque of 1.27 Nm.
Q: How is the MSM031B-0300-NN-M0-CH1 motor cooled?
A: Cooling for this motor is achieved through natural convection.
Q: What is the shaft type of the MSM031B-0300-NN-M0-CH1, and does it have a shaft seal?
A: The shaft design for this motor is a plain shaft without a shaft seal.
