Product Description:

The B-202-B-31-PZC is a brushless servo motor manufactured by Kollmorgen and supplied under the Kollmorgen Goldline B and BH Motors series. Intended for closed-loop industrial automation, the motor converts current from a matched servo drive into precise shaft torque and speed for positioning tables, pick-and-place gantries, and packaging axes. Its four-pole rotor and rare-earth magnet construction provide high torque density, while the stator windings are designed for operation on 230 VAC systems commonly used in light-to-medium-power machinery.

At 40 °C, the motor delivers a continuous shaft torque of 2.44 N·m while drawing a continuous line current of 3.0 A RMS; these paired ratings indicate the steady-state mechanical output available without overheating. The electromagnetic circuit has an inductance of 68.0 mH, which affects current rise time and helps filter switching ripple from the inverter. The unit provides a rated output of 1.0 kW at a speed of 3800 rpm, allowing direct coupling to inline gear stages or belt transmissions. This operating point supports applications that require consistent rotary power over extended production cycles.

Dynamic performance is supported by a peak torque of 7.38 N·m, which the motor can produce during rapid indexing or disturbance rejection. Its rotor inertia of 0.0000996 kg·m² supports high theoretical acceleration of 74,100 rad/s² and short settling times during direction changes. The back electromotive force constant is 49.0 V RMS/krpm, giving the servo drive predictable voltage feedback for precise field-oriented control. Frame-based heat dissipation is characterized by a thermal resistance of 0.81 °C/W, which helps determine cooling requirements in densely packed cabinets. Appropriate heat transfer through the mounting surface helps the motor maintain stable winding temperatures during continuous operation.