Product Description:

The MSK103A-0300-NN-S1-UG1-NNNN is a servo motor in the MSK IndraDyn S Synchronous Motors series produced by Bosch Rexroth Indramat. This motor converts drive commands into controlled rotary motion for positioning tasks in automated machinery and packaging lines. When paired with IndraDrive controllers, it delivers the torque and speed precision required for multi-axis industrial systems. Its design suits applications that need accurate acceleration, stable speed regulation, and repeatable stopping behavior during continuous production cycles.

Cooling is provided by natural convection, so heat leaves the stator through the housing without auxiliary fans. The motor uses size code 103, while the A length and winding code 0300 determine the electrical and mechanical arrangement for this frame. Position feedback is supplied by a single-turn optical encoder over the Hiperface interface, and the encoder provides 128 signal periods per revolution for closed-loop control. The encoder connection uses a 240° rotatable connector, which allows the cable to exit in several directions and helps routing in tight machine spaces. A plain shaft transfers torque directly to the connected coupling, and the standard design avoids special surface treatments.

For holding functions, an electrically released brake supplies 33 Nm of static torque to help prevent load drift when power is removed. The housing has an IP65 rating, which protects the bearing region and terminals against dust ingress and low-pressure water jets. Continuous operation is permitted at ambient temperatures from 0–40 °C, making the motor suitable for typical indoor industrial environments. The windings use insulation class 155, which supports elevated internal temperatures during dynamic operation. These features make the motor suitable for indexing axes, feed systems, and other machines that require precise feedback, dependable holding capability, and enclosed-motor protection.