Product Description:

The H31NRFC-LNN-NS-00 is a hybrid stepper motor produced by Kollmorgen in the H Hybrid Motors series. It combines permanent-magnet and variable-reluctance principles to translate pulse commands into incremental shaft movement for positioning tables, pick-and-place heads, and packaging axes. By doing so, it gives machine builders direct, repeatable rotary motion without the cost of servo feedback or gear reduction.

Mechanically, the motor fits a NEMA 34 frame and has a body length of 2.58 in, so it mates with common brackets. A smooth shaft measuring 0.3750 in in diameter and 1.25 in in length carries couplings directly. Eight lead wires exit through a regular leadwire harness; minimum conductor size is 22 AWG, and a single winding stack supports flexible series or parallel hookup. In parallel mode the coils draw 3.0 A across 0.94 Ohms of phase resistance and exhibit a stored energy of 6.4 mH. This electrical set produces 224 oz-in of static holding torque, meeting the demands of indexers that must resist load when power is present. Standard construction and NEMA mounting simplify installation inside compact enclosures.

Motion granularity is defined by a full-step angle of 1.8 degrees, yielding 200 discrete positions per revolution and inherent accuracy of ±1.5 %. The motor remains functional from -20 °C to +40 °C, making it suitable for unconditioned plant floors. Windings use Class B (130 °C) insulation that shows 100 Megohms of resistance and tolerates 340 Vdc impulse voltage, protecting against drive surges. These dielectric properties, together with the eight-lead configuration, let designers switch to series connection for higher supply voltage without compromising safety or step quality. Overall, the electrical and thermal margins align with the mechanical features to provide predictable open-loop performance in light industrial machinery.