Product Description:

The MSM031C-R300-NN-M0-CH0 is a synchronous motor manufactured by Bosch Rexroth Indramat as part of the MSM IndraDyn S Synchronous Motors series. In small handling modules, indexing tables, or pick-and-place heads, this motor supplies closed-loop rotary motion that can be coordinated by an IndraDrive controller or a similar drive platform. It is intended for compact automation equipment where accurate starts, stops, and short positioning moves are required. Its small format also suits installations where available space is limited and low moving mass helps support responsive axis behavior.

At standstill, the rotor can deliver 1.30 Nm of continuous torque, so positioning tasks remain stable without relying on peak overload. Heat generated during that duty is removed by natural convection, allowing the unit to operate without external fans or liquid circuits. Power, encoder, and protective earth conductors exit through a cable tail, which reduces connector height and eases routing through narrow machine frames. Feedback is supplied by a multi-turn absolute encoder that preserves position information after power loss, so the axis can return to operation without a reference run. Because the rotor shaft is supplied without a holding brake, any static load must be secured by the drive or by an external mechanical lock when power is removed.

The axial build follows motor length C, giving the unit a mid-range body within this frame size. A plain shaft is provided for clamp or press-fit couplings, which helps keep backlash low in servo applications. There is no shaft seal, so the motor should be mounted in dry, low-dust areas or used with an external sealing arrangement when exposure cannot be avoided. Electrical characteristics are linked to winding code R300, allowing compatible drive parameters to be applied while keeping thermal operation within expected limits. The compact mechanical envelope supports use in assemblies where limited stack height and low mass are important.