Product Description:

The MSK040B-0450-NN-M1-UG1-NSNN synchronous servomotor is part of the MSK IndraDyn S Synchronous Motors series produced by Bosch Rexroth Indramat. Serving as a compact rotary axis drive, it converts electrical energy into controlled torque and velocity for positioning tables, gantries, or packaging units in automated machinery. Its standard construction is also offered with explosion-protected design options, allowing deployment in hazardous zones where flammable gases or dust may be present. In regular automation service, it supports accurate start-stop motion and stable speed control on compact axes that require repeatable movement through frequent duty cycles.

This model is cooled by natural convection, so heat is dissipated through the motor surface without external fans. The enclosure carries an IP65 rating, which helps protect the stator against dust ingress and directed water jets encountered on factory floors. Position feedback relies on an optical encoder that communicates over the Hiperface interface and provides 128 signal periods, enabling fine commutation and absolute position recovery after power loss. This arrangement helps the drive maintain smooth commutation during acceleration and deceleration. For load holding on vertical axes, the electrically released brake supplies 4 Nm of static torque, keeping the shaft locked whenever power is removed.

Mechanical transmission is handled by a plain shaft that mates directly with couplings or pulleys and avoids keyway stress concentrations. The motor operates reliably within an ambient range of 0 to 40 °C, matching typical enclosure climates without derating. Insulation class 155 allows the windings to reach higher temperatures before aging, which supports long service life during demanding duty cycles. Inside the stator, winding code 0450 identifies the coil resistance and inductance pair expected by the associated IndraDrive controller, so current regulation and torque production remain consistent when the compact size 040 and length variant B are used in space-limited machine layouts.