BH-622-A-43-B3 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen BH-622-A-43-B3 is part of the Goldline B and BH Motors series with a motor diameter of 142 mm and a shaft diameter of 24 mm. This motor delivers a continuous stall torque of 14.6 N-m and has a peak stall torque of 50.8 N-m. It features a back EMF constant of 212 Vrms/kRPM and a brake torque of 48 N-m.
Internal Product Review
The BH-622-A-43-B3 is a Kollmorgen Goldline BH motor with an impressive 14.6 N-m continuous stall torque at 4.17 Arms. Peak output reaches 50.8 N-m, and the 48 N-m brake gives this motor excellent holding capability in demanding motion applications. A 3.51 N-m/Arms torque constant further highlights the motor’s efficient torque production.
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Product Description:
The BH-622-A-43-B3 is a three-phase brushless servo motor manufactured by Kollmorgen for the Kollmorgen Goldline B and BH Motors series. This unit serves as the rotary actuator in automation cells that require accurate velocity and position control, such as packaging lines, electronic assembly stations, and small press drives. When paired with a compatible digital amplifier, the motor’s six-pole rotor delivers commanded torque with low cogging, allowing machines to maintain tight following error without relying solely on gear reduction.
Electrical performance includes a continuous stall current of 4.17 Arms, which can be maintained indefinitely to produce a continuous stall torque of 14.6 N-m at the flange. For rapid moves, the drive may supply a peak stall current of 15.3 Arms, resulting in a peak stall torque of 50.8 N-m for short duty cycles. The copper windings have 7.8 Ω of DC resistance at 25 °C and 128 mH of phase-to-phase inductance, establishing the amplifier voltage requirements and expected current ripple. A torque constant of 3.51 N-m/Arms provides a direct relationship between commanded current and produced torque. Sinusoidal commutation supports smooth rotation and accurate control throughout the operating speed range.
The integrated fail-safe brake develops 48 N-m of holding torque, adds 56.4 mm to the motor’s overall length, and contributes 0.000127 kg·m² to the reflected inertia. Including the rotor, total inertia reaches 0.00103 kg·m², providing a moderate acceleration profile for mid-mass loads. The stator outer frame measures 142 mm in diameter, allowing the housing to fit installations designed for this frame envelope. The output shaft is ground to 24 mm for connection to compatible standard couplings. A back-EMF constant of 212 Vrms/kRPM supports operation at higher bus voltages without exceeding the motor’s insulation limits. A thermal time constant of 28 minutes helps stabilize winding temperature during extended operation.
