MSM165-93-204-S-0KA Kollmorgen
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MPN: M.1302.1214
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The Kollmorgen MSM165-93-204-S-0KA is a servo motor from the MSM Brushless Servo Motors series, featuring a continuous torque of 10.5 Nm and a peak torque of 34 Nm. It has a rated speed of 2000 rpm, a shaft diameter of 24 mm, and a net weight of 12 kg. The motor offers a maximum current of 24.0 A, a torque constant of 1.86 Nm/A, and a pole count of 6.
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Product Description:
The MSM165-93-204-S-0KA is a brushless servo motor produced by Kollmorgen for the MSM Brushless Servo Motors series. The unit converts drive-controller current into precise rotary motion for indexing tables, tool heads, and other motion axes that require repeatable positioning under varying loads. Its permanent-magnet rotor supports responsive torque production across a broad operating range. The motor is designed to operate with Hall sensor or encoder feedback, although the required feedback device must be supplied separately for closed-loop speed, torque, and position control.
This model delivers a continuous torque output of 10.5 Nm under rated thermal conditions, while its short-duration torque limit rises to 34 Nm for rapid acceleration. A rated shaft speed of 2000 rpm provides moderate linear feed rates when the motor is connected to belt, pulley, or gear-driven systems. Dynamic performance is aided by a rotor inertia of 0.0022 kg·m², which supports controlled acceleration and deceleration during repetitive start-stop cycles. The motor contains six poles, allowing smooth electronic commutation at practical electrical frequencies. Peak current demand reaches 24.0 A, so the connected servo drive must provide enough current capacity for brief high-torque operation. The windings have an inductance of 60.0 mH and a resistance of 5.7 Ω, which influence current rise time and winding losses.
During stall operation, the motor draws 6.2 A, a value that must be considered when the shaft holds a stationary load. The torque constant is 1.86 Nm/A, indicating the torque produced for each ampere of motor current. The back electromotive force constant is 225 V/1000 rpm, providing the drive with an electrical relationship between shaft speed and generated voltage. Mechanical coupling is handled by a 24 mm shaft with an 8 mm key, providing positive engagement with a compatible pulley, gearbox, or rigid coupling. An M8 × 1.25 tapped hole extends 19 mm into the shaft and accommodates suitable installation or removal hardware. The motor weighs 12.0 kg, which must be supported by a rigid mounting surface to maintain shaft alignment and limit vibration during operation.
