Product Description:

The MSK040B-0450-NN-M1-UP0-NNNN servo motor is built by Bosch Rexroth Indramat as part of the MSK IndraDyn S Synchronous Motors series. It is a permanent-magnet AC unit intended for closed-loop motion axes in industrial automation cells, where it delivers precise torque and position commands to conveyors, pick-and-place gantries, or tooling spindles. By combining compact frame size with high-resolution feedback, the motor helps a drive controller execute repeatable movements under variable mechanical loads.

Thermal performance is managed through natural convection cooling, so the motor relies on surface radiation and ambient airflow instead of forced fans or liquid lines. This arrangement simplifies cabinet layout and reduces maintenance. Position data travels over the Hiperface interface, allowing the drive to receive digital feedback through the motor cable. Inside the encoder, an optical scanning head reads an etched disk and delivers a base resolution of 128 signal periods per revolution before electronic interpolation, which supports fine velocity control at low speeds. Because the sensor is a multi-turn absolute device, the controller receives an unambiguous mechanical angle across multiple shaft revolutions after power loss, eliminating homing cycles.

Mechanical coupling is handled by a shaft with a keyway, giving a positive drive element for pulleys or couplings without custom clamping hubs. The motor uses frame code 040 and length code B, indicating a compact stator diameter with a B-length active stack. The 0450 winding set gives the motor voltage constant and rated current values that match medium-power IndraDrive amplifiers used on light gantry axes. The assembly ships without a holding brake, which removes residual drag and allows rapid inertial acceleration when external load-locking devices are already present in the machine.