Product Description:

The MSK040B-0450-NN-S1-UP0-NSNN is a synchronous servo motor built by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. With size code 040 and a length B housing, it fits compact axes that need medium continuous torque and fast response in limited installation space. In automated machinery, it converts drive commands into precise rotary motion for positioning, contouring, feed handling, tool alignment, electronic gearing, and material-handling tasks. That makes it appropriate for packaging equipment, transfer units, and small handling modules that depend on quick settling after short moves.

Thermal management relies on natural convection, so the housing surface dissipates heat without auxiliary fans or liquid circuits. Feedback is handled by an optical encoder with a connector that is rotatable through 240°, which helps with cable routing in confined spaces. The encoder communicates through Hiperface, allowing the drive to read absolute position at power-up. Resolution reaches 128 signal periods, and the optical scanning principle supports smooth velocity control with stable signal quality. Because the feedback system is single-turn, the absolute position repeats after each revolution, which suits indexing tables, feed rolls, and similar rotary axes. The winding code 0450 matches the electrical values expected by compatible IndraDrive amplifiers.

Mechanically, the motor is supplied without a holding brake, so power-off load retention must be provided externally when the application requires it. A tapered shaft with a keyway transmits torque to couplings or pulleys and helps prevent slip during rapid reversals or repeated acceleration. The housing uses the standard and explosion-protection design option, keeping the mechanical form suitable for installations that use protected equipment. This layout is useful where cable access, compact dimensions, and direct torque transmission matter more than integrated holding capability.