Product Description:

The MSM031C-R300-NN-M5-MH0 is a compact synchronous motor manufactured by Bosch Rexroth Indramat within the MSM IndraDyn S Synchronous Motors series. It is intended for light-duty positioning tasks in packaging machines, pick-and-place gantries, and small transfer stations where closed-loop speed and torque control are required to coordinate multiple automated axes. Its synchronous design supports quick response to command changes and steady low-speed operation during short indexing sequences, which helps compact automation equipment maintain consistent motion from one cycle to the next.

This model delivers a continuous standstill torque of 1.30 Nm, which supports static holding and low-speed feed motions. Thermal energy is removed through natural convection, so no external fan or liquid circuit is needed, but enclosure airflow must be maintained to prevent heat buildup. A length code C stator stack provides moderate electromagnetic mass that balances torque density with inertia. The frame is identified as motor size 031, giving a small mounting footprint suitable for compact cabinets and lightweight end effectors. Electrical behavior follows the R300 winding code, which indicates phase resistance and voltage constant values matched to IndraDrive compact inverters operating on standard plant supplies.

A plain shaft is provided for rigid clamp or collet couplings where zero backlash is required. The unit is shipped without a holding brake, so mechanical locking or drive-based torque must be used to maintain position during power loss. It is also supplied without a shaft seal, so installation should occur inside clean enclosures or in areas where fluid ingress is not a concern. As a member of the MSM IndraDyn S lineup, the motor uses standardized feedback interfaces and flange geometries across the range.