Product Description:

The MSK040B-0450-NN-M1-UG0-NNNN is an IndraDyn S synchronous servomotor manufactured by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. Acting as the active drive component, it converts controlled three-phase power from an IndraDrive inverter into torque and velocity with rapid acceleration capability. It is used to move indexing tables, linear slides, and articulated tooling where repeatable positioning, compact size, and compatibility with Rexroth motion controllers are required in industrial automation lines. The device also stores electronic motor data in its encoder so the connected drive can read it automatically.

Thermal management is handled by natural convection, so the housing fins dissipate heat without forced ventilation and the mounting area must allow free airflow. Motion feedback is supplied by a Hiperface interface that communicates digitally with the drive, while the optical sensor disk yields 128 signal periods per mechanical turn for smooth low-speed control. The encoder is a multiturn absolute model that retains shaft rotation counts after power is removed. Because the motor is supplied without a holding brake, machines that require standstill locking must use an external clamp or drive-applied torque. Winding code 0450 indicates the electrical values used by the matching drive.

Frame size 040 corresponds to a 40 mm stator core diameter for compact installations, and length designation B keeps the motor body short for tight spaces. A plain shaft with a ground cylindrical surface transmits torque through compression couplings, which helps avoid the concentricity errors associated with keyed connections. The feedback connector is rotatable through 240°, allowing the plug position to be adjusted for cleaner cable routing along the machine structure.