Product Description:

The MSK076C-0450-NN-S1-UP0-NNNN is a rotary servomotor built by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. As an IndraDyn S synchronous servomotor, it converts drive current from a Rexroth inverter into precise angular displacement and torque, letting automated machinery index, position, or follow dynamic speed profiles with closed-loop feedback. Its electromechanical package integrates feedback, power, and mounting provisions so that machine builders can embed the unit into printing lines, packaging axes, or pick-and-place gantries that need compact, high-response motion.

A passive cooling scheme based on natural convection dissipates stator losses, so the motor can be mounted without external blowers or liquid lines. Feedback is handled through a rotatable 240° connector that routes encoder signals to the drive, and the data path uses the Hiperface protocol for absolute position transmission over two differential channels. Inside the encoder, an optical disc produces 128 signal periods per revolution, and the optical scanning principle supports fine resolution with minimal electrical noise. Because the sensing element is single-turn, the controller receives unique position information for one mechanical revolution, which is useful in short-stroke axes.

Performance parameters are tied to the winding code 0450, which matches the drive current and voltage range for medium-speed duties. The frame size of 076 indicates the external diameter, while motor length C sets the stack height and gives predictable inertia for multi-axis sizing. Mechanical power is transferred through a shaft with a keyway, an interface that resists slip under cyclic torque. For applications that employ dynamic braking or external holding devices, the motor is supplied without a holding brake, which reduces mass and allows direct coupling to external clamping hardware.