Product Description:

The N42HRFM-LNK-NS-00 stepper motor is produced by Pacific Scientific as part of the POWERPAC N Stepper Motors series. Built on the NEMA 42 frame standard, it converts discrete command pulses from an industrial drive into accurate incremental rotation for indexing tables, conveyors, and material-handling axes. Heavy-duty NEMA mounting points and standard construction make it suitable for fixed installation inside automated machinery where position must be held without an active brake.

The motor develops a holding torque of 22.2 Nm, enabling the load to stay in position once the phases are energized. Through 200 discrete increments per revolution, motion is delivered at a 1.8° angular resolution, allowing open-loop control. A laminated rotor and standard windings limit core losses while supporting dynamic response. Electrical insulation maintains 100 Megohms of resistance, and the winding system tolerates up to 340 Vdc, so high-bus drives can be used without risking dielectric failure. A regular leadwire connection style permits series or parallel phase wiring and supports both bipolar and unipolar drive modes. Because no feedback device is fitted, the controller infers position purely from commanded counts, a method that is common where predictable load profiles minimize the chance of missed steps.

The motor occupies a 4.325 in. square frame, which gives it a compact footprint relative to its torque output. The overall body length is 150 mm, and a 2-stack lamination helps balance detent torque and inertia. The windings exit as an 8-lead harness, so the same unit can be wired in parallel for higher current or in series for higher voltage drives. Positional repeatability benefits from a ± 3 % step accuracy, which is adequate for material feed, labeling, and light machining tasks. A single shaft with a straight key creates a secure mechanical interface, and because the assembly ships without a shaft seal, external guarding should be added when fluids or debris are present.