Product Description:

The MSM041B-0300-NN-M5-MH0 is a rotary actuator produced by Bosch Rexroth Indramat as part of the MSM IndraDyn S Synchronous Motors series. It is intended for industrial automation where closed-loop drive controllers require a compact, high-precision torque source. The unit couples directly to gearheads or machine shafts, translating electrical current from an IndraDrive amplifier into controlled mechanical rotation for positioning, indexing, or continuous-speed tasks. Its compact format makes it suitable for axes where installation space is limited but accurate motion is still required.

At standstill the rotor can deliver 2.40 Nm of continuous torque, providing steady force for holding or low-speed moves without thermal overload. Heat generated at this load is dissipated through natural convection, so no external blower or liquid circuit is needed. The motor belongs to frame size 041, giving a compact stator diameter that fits tight mounting spaces. Its drive side uses a plain shaft for backlash-free coupling with clamps or collets, and winding code 0300 sets the electrical values expected by matching IndraDrive power stages. This layout supports direct integration into compact servo assemblies that depend on stable torque delivery and simple mechanical coupling.

The length designation B gives the motor a moderate axial package that balances torque density with surface area for passive cooling. The design comes with no holding brake and no shaft seal, reducing rotating mass and keeping the output end simple. Permanent magnets in the rotor stay synchronized with the stator field, allowing precise commutation and smooth low-speed operation. The shared interface used across this product line supports integration with compatible feedback, cabling, and drive components for coordinated motion control.