Product Description:

The MSM031B-0300-NN-M0-CH0 is a compact AC motor built by Bosch Rexroth Indramat for the MSM IndraDyn S Synchronous Motors series. It acts as a rotary actuator that converts drive current from an IndraDrive servo inverter into finely controlled motion for pick-and-place stations, indexing tables, and auxiliary conveyor axes inside automated machinery. Its low inertia construction supports rapid start-stop cycles demanded by modern assembly lines while occupying minimal space in a machine frame. Its compact format also suits densely packed equipment where short travel moves and frequent reversals are common.

The motor delivers a continuous standstill torque of 0.64 Nm, which is suitable for light loads while the shaft remains energized. Heat is removed solely by natural convection, so no external blower or liquid circuit is required. Power and feedback conductors exit through a cable tail, enabling direct strain-relieved routing to the control cabinet, and rotor position is captured by a multiturn absolute encoder so the drive has position data immediately after power-up. The unit is supplied without a holding brake, which reduces mass and inertia, so position at standstill must be maintained by stator torque or an external clamp when power is removed.

Mechanical dimensions use motor length code B and frame size 031, which keep the package short for tight mounting spaces. A smooth, plain shaft transmits torque through friction couplings, and the lack of a shaft seal limits use to clean locations where fluid ingress is not a concern. The stator uses winding code 0300, which matches the electrical characteristics expected for low-voltage IndraDrive duty cycles. The short housing and direct cable exit help when the motor is mounted in narrow machine sections or beside adjacent components.