H21NRFB-LNN-NS-00 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen H21NRFB-LNN-NS-00 is part of the H Hybrid Motors series and features a NEMA 23 frame size with a 2.25 inch diameter. This motor has eight lead connections, standard construction, and operates with a step angle of 1.8 degrees for 200 steps per revolution. It uses Class B insulation rated to 130°C and has a smooth shaft design with laminated rotor type.
Internal Product Review
The H21NRFB-LNN-NS-00 is a Kollmorgen hybrid motor in a NEMA 23 frame with a regular leadwire connection. Standard construction and a laminated rotor support smooth operation and consistent performance in motion control assemblies. A 1.8-degree step angle with 200 steps per revolution makes this motor a strong choice for precise positioning.
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Product Description:
The H21NRFB-LNN-NS-00 is a hybrid stepper motor produced by Kollmorgen within the H Hybrid Motors series. In automated assembly equipment, process dispensers, and light transport mechanisms, this motor converts timed current pulses from a drive into precise incremental rotation, which reduces the need for closed-loop feedback in many positioning tasks. Its compact envelope and compatibility with common mounting brackets make it a practical choice for machinery that requires deterministic motion without the added complexity of servo feedback.
Its mechanical profile follows the NEMA 23 frame size, giving it a mounting face that matches many compact drive assemblies. A circular housing diameter of 2.25 in further shapes the motor envelope and aligns with couplings sized for similar stepper formats. Motion is generated in discrete increments, and each full step covers 1.8 degrees, so a complete rotation is delivered in 200 equal steps. Positional repeatability is maintained within ±1.5%, which is suitable for small indexing devices that cannot tolerate significant cumulative error. One rotor-stator stack is used, and the laminated core reduces eddy-current losses while improving detent torque during fine microstepping.
Electrically, the stator insulation is rated for 340 Vdc, and the motor has a thermal class of Class B, 130°C. The motor uses a regular leadwire configuration with an 8 lead bundle, which allows series or parallel phase wiring to match available supply current. No internal feedback device is fitted, so position is inferred from commanded steps. Standard construction, a NEMA flange, a smooth shaft, and the absence of a shaft seal simplify installation where the surrounding enclosure already limits contamination. Continuous duty is supported from -20°C to +40°C, covering most controlled factory environments.
