MSM165-146-304-S-2KA Kollmorgen
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MPN: M.1302.1335
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The Kollmorgen MSM165-146-304-S-2KA is part of the MSM Brushless Servo Motors series and has a continuous torque of 16.5 Nm with a peak torque reaching 54 Nm. Operating at 460 V with a peak current of 52.3 A, this servo motor features single-turn high resolution feedback and a rated speed of 3000 rpm. Its net weight with brake is 18.2 kg, and it has a phase inductance of 18.5 mH.
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Product Description:
The MSM165-146-304-S-2KA is a brushless servo motor produced by Kollmorgen for the MSM Brushless Servo Motors series. Designed for closed-loop drive systems, the unit delivers programmable angular motion to conveyor sections, pick-and-place heads, and other automated machinery. Its onboard, single-turn, high-resolution feedback communicates the absolute rotor position to a compatible drive, enabling precise velocity and torque regulation throughout each machine cycle. This feedback also allows the drive to determine the shaft position immediately after startup without completing a separate homing sequence.
At a bus voltage of 460 V, the motor supplies a continuous shaft torque of 16.5 Nm while sustaining a rated speed of 3000 rpm. These operating values allow the drive to maintain steady mechanical output while keeping the motor within its continuous thermal limits. A peak current of 52.3 A is the maximum transient demand that the inverter must be able to supply during rapid acceleration. The motor has a phase inductance of 18.5 mH and a phase resistance of 1.56 ohms; these electrical properties affect current ripple, response time, and copper loss during sinusoidal commutation. The electromagnetic design produces 1.34 Nm of torque for every ampere of stator current, providing the drive with a consistent relationship between commanded current and motor torque.
The shaft can deliver a peak torque of 54 Nm for brief periods when additional force is required for acceleration or load changes. The motor has a stall current of 13.6 A peak, indicating the winding current present when the rotor is stationary under the applicable operating condition. Back electromotive force increases at a rate of 161 V/kRPM, which allows the drive to anticipate generated voltage as shaft speed rises or the load decelerates. A normally closed brake operates from 24 VDC and locks the rotor when brake power is removed. The assembled motor has a mass of 18.2 kg and a rotor inertia of 0.0044 kg·m², both of which must be considered when setting acceleration and deceleration profiles. Mechanical attachment is provided by an M8 × 1.25 mm shaft thread with a depth of 19 mm, allowing pulleys, gears, or custom fixtures to be secured to the output shaft.
