Product Description:

The MSM115-89-402-S-2KA is a brushless servo motor produced by Kollmorgen and offered in the MSM Brushless Servo Motors series. Designed for compact industrial axes, the unit translates drive current into tightly regulated shaft torque and velocity for indexing tables, conveyors, and automated packaging stations. Its frame integrates directly with gearboxes or belt drives, reducing assembly time on the machine frame. It pairs with Kollmorgen drives that supply sinusoidal current loops for smooth motion.

With a rated speed of 4000 rpm, the motor can follow high-cycle command profiles without exceeding the speed limits of typical line-frequency machinery. Continuous shaft output reaches 89 in-lb, delivering sufficient torque for medium-duty pick-and-place actuators. The square front flange follows a 115 mm frame size, allowing the housing to fit standard IEC mechanical footprints. Up to 48 kg of permissible radial load at 4000 rpm protects the bearings when pulleys are belt-tensioned. An internal brake energized at 24 VDC holds the axis during power-off sequences. Keyway machining on the shaft transmits torque without relying solely on clamping forces. A single-turn, high-resolution encoder supplies absolute position data for drive commutation and closed-loop control.

The thermal design allows a winding surface temperature of 125 °C before derating, consistent with Class H insulation practices. The feedback connector has 17 pins that route sine and cosine channels, brake power, and encoder supply through a single circular plug. Analog sine and cosine feedback signals enable micro-interpolated positioning at the drive. The shaft end is tapped to M6 × 1.0 mm, and the threaded hole has a depth of 16 mm so drawbar bolts or lifting rings can seat securely. This threaded interface provides a positive attachment point without changing the shaft’s keyway connection.