Product Description:

The B-102-A-21 is a brushless permanent-magnet servo motor manufactured by Kollmorgen for the Kollmorgen Goldline B and BH Motors series. The unit is sized for light industrial axes that demand quick acceleration and repeatable speed control. When paired with a compatible digital drive, it supplies controlled mechanical power to indexing tables, small gantries, or tensioning spindles where precise torque delivery and compact dimensions are critical to equipment uptime and process consistency.

Its electromagnetic design yields a continuous stall torque of 0.84 N-m while drawing a continuous line current of 2.4 Arms from the drive. For rapid indexing or overcoming static friction, the motor withstands peak line current up to 7.2 Arms and can deliver a peak torque of 2.41 N-m. The stator windings present 6.80 Ω of DC resistance and an inductance of 30.0 mH, values that influence current ripple and current regulator sizing. Back electromotive force is rated at 20.9 Vrms/kRPM, so the drive must supply proportional voltage as speed rises while remaining below the maximum line-to-line limit of 250 Vrms. These ratings describe the available torque-speed range, while a torque sensitivity of 0.35 N-m/Arms helps predict load response during current-mode control.

Mechanically, the rotor inertia is only 0.000031 kg-m², supporting fast acceleration to the permitted top speed of 7500 RPM without excessive drive effort. A bayonet power and feedback connector is fitted, though mating plugs are not included. The rear shaft extension provides an additional coupling surface for tachometers or encoders, and the housing weight is 2.5 kg. With IP65 sealing, the motor resists dust ingress and low-pressure water jets, making it suitable for washdown or particulate-laden work zones.