Product Description:

The MSM031C-R300-NN-M0-CH1 is a synchronous motor produced by Bosch Rexroth Indramat in the MSM IndraDyn S Synchronous Motors series. In packaging machines, pick-and-place axes, or small conveyor stations, this motor converts electrical power from a servo drive into controlled rotary motion. The permanent-magnet design, compact frame, and integrated feedback devices allow the drive controller to command position, velocity, and torque with the accuracy required in light-duty industrial automation. This arrangement supports smooth motion on compact axes that require repeatable starts, stops, and short positioning moves.

Its continuous stall torque is 1.30 Nm, meaning the shaft can hold that torque continuously without exceeding the winding temperature limit. Heat produced during operation is removed by natural convection, so no external fan or liquid circuit is required and the housing fins must remain exposed to ambient air. All power, brake, and feedback conductors exit through a factory-terminated cable tail, which simplifies wiring and helps keep the connection layout compact. Rotor position is detected by a multiturn absolute encoder, which supplies the controller with a unique position value across multiple mechanical revolutions and eliminates homing after power loss. When the axis must remain stationary, the integrated holding brake supplies 1.27 Nm of static torque to lock the rotor until current is restored.

The brake is electrically released, so it engages automatically when the supply voltage is removed and disengages only when the drive energizes the coil. The motor has motor length C, which gives this frame its axial dimension. It also has motor size 031, which uses the 60 mm flange pattern common to the MSM family. A plain shaft is provided for zero-backlash coupling, and there is no shaft seal. The stator uses an R300 winding for operation with compatible IndraDrive controllers, allowing rated torque at moderate speeds while keeping current within the drive’s continuous range.