Product Description:

The B-102-A-99-066 is a brushless servo motor manufactured by Kollmorgen within the Kollmorgen Goldline B and BH Motors series. As a permanent-magnet AC machine, it couples with a digital drive to generate precision torque and velocity for pick-and-place heads, small gantries, and other motion axes that demand fast response and repeatable positioning in automated production. The low rotor inertia of 0.0000309 kg·m² shortens acceleration time, while static friction of 0.04 N-m and viscous damping of 0.002 N-m/kRPM minimize disturbance torques at low speed.

The motor delivers a continuous stall torque of 0.84 N-m, produced while a phase current of 2.4 Arms is maintained without exceeding the temperature limit. A back electromotive force constant of 20.9 Vrms/kRPM links motor speed to the voltage returned to the drive and assists with commutation tuning. The windings are rated for up to 250 Vrms line to line, so standard Goldline drives can use the full speed range without insulation stress. During fast accelerations, the phase current may reach 7.2 Arms; at that level, the copper generates momentary peak torque yet avoids demagnetization. Electrical dynamics are influenced by 6.8 Ω DC resistance, 30 mH inductance, and a four-pole rotor, values that set current loop bandwidth and limit ripple torque.

The torque constant of 0.345 N-m/Arms provides a linear conversion between commanded current and mechanical output, simplifying controller gain calculations. Peak stall torque is 2.41 N-m, giving almost three times the continuous rating for overcoming static loads. Thermal characteristics include a thermal time constant of 10 min and a thermal resistance of 1.3 °C/W, so the frame temperature rises gradually and is easily managed with convection airflow. This thermal behavior helps reduce rapid temperature swings during repeated start-stop operation.