BH-826-D-41 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen BH-826-D-41 is a servo motor in the Goldline B and BH Motors series, featuring a rated power of 12.8 kW and rated speed of 3000 rpm at 400 V. It delivers a rated torque of 47.5 Nm, standstill torque of 93 Nm, and has a peak current of 200 A. The motor weighs 67 kg and comes equipped with a front shaft seal.
Internal Product Review
The BH-826-D-41 is a Kollmorgen Goldline BH motor that delivers 12.8 kW at 400 V and 3000 rpm for strong servo-axis performance. A rated torque of 47.5 Nm combined with 93 Nm standstill torque supports confident acceleration and stable low-speed holding. Front shaft seal construction adds valuable protection in demanding installations, making the motor an excellent choice for high-load motion applications.
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Product Description:
The BH-826-D-41 is a three-phase permanent-magnet servo motor produced by Kollmorgen for the Kollmorgen Goldline B and BH Motors series. It supplies closed-loop rotary motion for positioning tables, gantry axes, and other industrial automation equipment that requires repeatable torque at synchronous speed. The BH frame combines high magnetic flux density with a sealed housing for operation in demanding production environments. Its permanent-magnet rotor works with an external servo drive to provide controlled acceleration, speed, and positioning. The housing also supports installation near machinery where dust or other contaminants may be present.
With a 400 V supply, the motor delivers 12.8 kW of mechanical power while operating at 3000 rpm. This continuous operating point keeps copper losses and temperature rise within the intended limits. Output torque reaches 47.5 Nm, providing a speed-to-torque profile suited to medium-inertia loads. The phase conductors carry 24 A during rated operation, establishing the required magnetic flux without overloading a compatible servo amplifier. A stator inductance of 4.7 mH limits current ripple as the inverter switches and supports smooth torque production. The motor is compatible with the 400/480 V drive class commonly used in industrial facilities. Its winding resistance is 0.088 ohm, which contributes to the motor’s resistive power loss during operation.
Short dynamic events can draw a peak current of 200 A, enabling rapid acceleration or regenerative braking for brief intervals. The motor provides a standstill torque of 93 Nm, allowing the axis to resist static loads through drive-controlled torque even though no mechanical brake is installed. A rotor inertia of 126 kg·cm² affects command response and helps the control loop manage overshoot under changing loads. Thermal accumulation is moderated by a 55-minute thermal time constant, so the internal temperature rises gradually during cyclic operation. The motor weighs 67 kg and measures 520.2 mm in length, which should be considered when selecting mounting surfaces and supporting structures. A front shaft seal limits contaminant entry around the output shaft. The motor is supplied without mating plugs, so compatible connectors must be selected separately. Its torque constant is 1.8 Nm/A, allowing the drive to regulate output torque according to commanded motor current.
