MSM115-89-404-S-0KA Kollmorgen
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MPN: M.1302.1213
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The Kollmorgen MSM115-89-404-S-0KA is part of the MSM Brushless Servo Motors series and has a continuous torque of 10 Newton-meters with a peak torque of 32 Newton-meters. It operates at a rated speed of 4000 RPM and a rated voltage of 460 volts, with a stall current of 10.9 amps peak. This servo motor features single-turn high resolution feedback and has a net weight of 11 kilograms.
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Product Description:
The MSM115-89-404-S-0KA is a brushless servo motor manufactured by Kollmorgen within the MSM Brushless Servo Motors series. Designed for closed-loop positioning and speed regulation, the unit connects to a compatible digital drive to move indexing tables, packaging axes, and other precision loads in automated equipment. Its permanent-magnet rotor and integrated feedback device provide tighter velocity control than open-loop induction machines, making the motor suitable for applications that require repeatable motion.
The back electromotive force constant is 123 V per 1,000 rpm, indicating the voltage generated at the terminals for every 1,000 rpm of shaft speed and the voltage margin required from the drive. With rated cooling, the motor delivers 10 Nm of continuous torque, while rapid transients require up to 38.2 A peak from the drive. The six-pole rotor provides magnetic alignment for controlled commutation, and its inertia of 0.0016 kg-m² limits acceleration demands on the drive train. A torque constant of 1.03 Nm/A relates phase current to developed torque. The peak stall current is 10.9 A, while the 12.0 mH phase inductance controls the current rise time and helps filter switching harmonics. These electrical characteristics assist with selecting a compatible drive, bus components, and motor cables.
During short-duty operation, the motor produces a peak torque of 32 Nm, provided that the shaft remains within its maximum speed of 4,000 rpm and the supply bus provides a line voltage of 460 V. Phase resistance is 2.0 ohms, helping keep copper losses moderate at continuous load. The single-turn high-resolution encoder sends absolute shaft-position information to the controller after each power cycle. An M6 × 1.0 mm shaft-end thread with a depth of 16 mm supports installation of compatible mechanical components. The housing weighs 11.0 kg, providing a stable motor body without placing excessive mass on compact gantry structures.