MSM165-146-304-E2-2KA Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
MPN: M.1302.1297
The Kollmorgen MSM165-146-304-E2-2KA is part of the MSM Brushless Servo Motors series and operates at a voltage of 460 V with a speed of 3000 rpm. This motor offers a continuous torque of 16.5 Nm and a peak torque of 54 Nm, with a net weight of 18.2 kg when equipped with a brake. It has a stall current of 13.6 A peak and a winding resistance of 1.56 Ohms.
Internal Product Review
The MSM165-146-304-E2-2KA is a Kollmorgen brushless servo motor well suited for precise, high-demand motion control. Continuous torque of 16.5 Nm and peak torque of 54 Nm support strong acceleration and stable servo response. A 460 V rating and 3000 rpm capability make this motor a strong choice for demanding industrial axes.
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Product Description:
The MSM165-146-304-E2-2KA is a brushless servo motor built by Kollmorgen for the MSM Brushless Servo Motors series. It converts controlled three-phase electrical power into precise mechanical rotation, giving automated equipment the commanded position, speed, and torque required for coordinated motion. In industrial automation platforms, the unit typically connects to gearheads, ball screws, or timing pulleys, allowing machine tools, packaging stations, and material-handling axes to follow drive profiles with high accuracy and repeatability.
The motor can sustain a continuous shaft torque of 16.5 Nm without overheating, while short bursts of up to 54 Nm accommodate acceleration and shock loads. Reaching peak output requires the drive to supply up to 52.3 A peak, and thermal sensors inside the stator monitor winding temperature during these transients. Under locked-rotor conditions, the current stabilizes near 13.6 A peak, which is relevant when selecting compatible cables and protective devices. Current-to-torque conversion is represented by a torque constant of 1.34 Nm/A, allowing the drive controller to relate commanded current to expected torque output. These electrical characteristics support accurate regulation during continuous operation, rapid acceleration, and brief changes in mechanical demand.
The three motor windings have an inductance of 18.5 mH and a phase resistance of 1.56 Ω, which influence current-loop response and resistive losses. The rotor assembly has an inertia of 0.0044 kg·m² with the holding brake installed, affecting how quickly the connected axis can accelerate or decelerate. With the brake and resolver installed, the assembly weighs 18.2 kg, and its steel ST-60 shaft accommodates keyed or clamping couplings. The motor measures 366 mm in overall length, with 316 mm extending from the mounting face. Its six-pole design supports a rated speed of 3000 rpm on a 460 V supply and produces a back-EMF constant of 161 V/krpm.
