Product Description:

The M-403-B-B1 is a brushless servo motor engineered by Kollmorgen within the M Goldline Servo Motors series. This unit converts drive current into precise rotational motion for industrial automation. The resulting motion allows machine tools, pick-and-place heads, and indexing tables to follow programmed torque, speed, and position commands.

The electromagnetic section has a back electromotive force of 67.2 V RMS/krpm, so the drive must supply sufficient voltage at high speed. Under locked-rotor conditions, the windings can carry a continuous stall current of 6.4 A RMS while producing a continuous stall torque of 6.78 N·m. Copper losses are governed by a DC resistance of 2.6 Ω, and changes in current are limited by a stator inductance of 50 mH. With a torque constant of 1.11 N·m/A RMS, each ampere delivers predictable shaft torque, and the four-pole magnetic design supports smooth commutation. The rotor’s thermal mass warms slowly during sustained operation. A thermal time constant of 22 minutes pairs with a thermal resistance of 0.48 °C/W, indicating how quickly heat flows from the windings to the housing during sustained loading.

Dynamic capability rises to a peak stall current of 18.8 A RMS, allowing the motor to deliver a peak stall torque of 19.8 N·m for brief accelerations. During normal operation, it supplies a rated power of 2200 W at a rated torque of 8.4 N·m, establishing clear continuous operating limits. Rapid response is supported by a rotor inertia of 0.00259 kg·m², which helps minimize overshoot in high-bandwidth position loops. The assembly weighs 10.5 kg, so the mounting hardware must support this static load. Its thermal characteristics affect the allowable duration of sustained loads, while its peak current capacity supports short periods of increased acceleration.