Product Description:

The MSK040B-0450-NN-M2-UP1-NNNN is a servo motor built by Bosch Rexroth Indramat within the MSK IndraDyn S Synchronous Motors series. As an IndraDyn S synchronous servo motor, it converts electrical energy into controlled rotary motion for positioning axes and process drives in automated machinery. The motor uses winding code 0450, belongs to size 040 with length B, and comes in the standard mechanical design. It also incorporates optical multi-turn absolute feedback so the drive controller can maintain precise rotor position information through power interruptions and restart sequences.

Heat removal relies on natural convection, eliminating the need for forced-air or liquid cooling hardware and simplifying the surrounding machine layout. The housing carries an IP65 ingress rating, which helps block dust and water jets when the motor is installed near active production areas. Motion can be held when power is removed by an electrically released brake with 4 Nm of holding torque, which is useful on vertical or indexing axes that must remain stationary at standstill. Position feedback reaches the drive through an EnDat2.1 interface with an optical sensor that generates 2048 signal periods per revolution, allowing the controller to resolve fine speed and angle changes during closed-loop operation.

In operation, the motor is intended for ambient air temperatures from 0 to 40 °C, which matches common machine and cabinet conditions. Thermal durability is supported by insulation class 155, so the stator windings can withstand elevated internal temperatures during intermittent load peaks. Mechanical power is transmitted through a shaft with keyway, providing a secure drive interface for couplings, pulleys, or similar transmission elements. Wiring flexibility is improved by an encoder connector that is rotatable 240°, making it easier to route cables where installation space is limited or where cable entry direction must be adjusted after mounting.