Product Description:

The H31NRLP-LNN-NS-00 is a hybrid stepper motor produced by Kollmorgen as part of the H Hybrid Motors series. The unit converts discrete control pulses into incremental shaft rotation, enabling precise open-loop positioning for indexing tables, pick-and-place axes, and other light industrial motion tasks. A smooth shaft output can be coupled directly to timing pulleys, lead screws, or gearheads to translate electrical commands into mechanical motion.

Electrical behavior includes a rated phase current of 4.2 A flowing through 4-lead series windings with 0.52 Ω of resistance and 4.0 mH of inductance. At this excitation, the motor develops a holding torque of 239 oz-in and uses a full-step angle of 1.8 degrees, so 200 full steps complete each revolution. Static accuracy remains within ±1.5%, and rotor inertia of 0.0083 oz-in-s² moderates acceleration profiles. Thermal characteristics include a junction-to-ambient resistance of 3.9 °C/W and Class B (130 °C) insulation that withstands 340 Vdc test voltage while maintaining 100 Megohms of insulation resistance. Signal and power conductors exit through a regular leadwire connection style, and the single-stack frame has a standard construction with a body length of 2.58 in.

Mechanical limits include an axial bearing capacity of 180 lb and a permissible radial load of 35 lb at the shaft extension. The motor weighs 3.2 lb, and its smooth shaft allows direct coupling to driven elements without key slots. Continuous service is allowed between -20 °C to +40 °C, with natural convection around the NEMA 34 frame handling heat dissipation. A stator design matched to the max-torque-at-high-speed winding helps maintain dynamic torque at higher speeds without exceeding the listed load limits.