MSM165-146-304-E2-0KA Kollmorgen
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MPN: M.1302.1165
The Kollmorgen MSM165-146-304-E2-0KA is part of the MSM Brushless Servo Motors series. It offers a continuous torque of 16.5 Nm and a peak torque of 54 Nm, with a rated speed of 3000 rpm. This servo motor weighs 16.3 kg and features an encoder resolution of 2000 lines.
Internal Product Review
The MSM165-146-304-E2-0KA is a Kollmorgen brushless servo motor with 16.5 Nm continuous torque and 3000 rpm rated speed. A 2000-line encoder supports precise feedback, and 54 Nm peak torque gives strong transient response in demanding motion applications. A well-balanced servo motor for accurate and confident axis performance.
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Product Description:
The MSM165-146-304-E2-0KA is a brushless servo motor produced by Kollmorgen within the MSM Brushless Servo Motors series. It delivers closed-loop motion control for positioning tables, feeders, and similar axes that require repeatable acceleration and deceleration. When integrated with a matched drive, the motor converts electrical energy from a 460 V supply into mechanical rotation while maintaining commanded torque and speed profiles in industrial automation cells. Its brushless design uses electronic commutation to regulate rotor movement without the mechanical wear associated with brushes.
This model produces a continuous shaft torque of 16.5 Nm, allowing it to handle constant mechanical loads without thermal derating. At the rated speed of 3000 rpm, the motor sustains that torque so linear actuators or gearheads receive consistent power. A torque constant of 1.34 Nm/A establishes the proportional relationship between phase current and torque generation, helping drive controls calculate current demand. The stator has an inductance of 18.5 mH, which affects current rise times and the gain settings of current regulators. Back electromotive force scales with a voltage constant of 161 V/KRPM, which the drive can use for speed estimation and overspeed protection. Copper losses are associated with a phase resistance of 1.56 ohms, allowing thermal models to calculate steady-state winding temperature under different duty cycles.
When rapid acceleration is required, the motor can deliver a peak torque of 54 Nm and draw up to 52.3 A peak from the inverter. Its 13.6 A stall current establishes the limit for holding static loads without shaft movement. Six magnet poles determine the electrical cycle count and commutation frequency at a given speed. A rotor inertia of 0.0036 kg·m² balances quick response with load stability. The frame weighs 16.3 kg and has an overall length of 366 mm, allowing installation in medium-sized machinery. Feedback is provided at a resolution of 2,000 encoder lines, supporting precise position measurement for coordinated motion.
