Product Description:

The N31HRLJ-LNK-NS-00 motor is manufactured by Pacific Scientific as part of the POWERPAC N Stepper Motors series. It is intended for open-loop positioning duties in automated tooling, test stands, and light material-handling stations, where each input pulse is translated into a fixed angular increment for repeatable motion. This operating method suits indexing applications that do not require encoder-based feedback during normal operation.

Its basic increment is a 1.8° step angle, giving the shaft 200 full steps per revolution and allowing controllers to map one pulse to 1.8 mechanical degrees. To resist back-driving at rest, the magnetic circuit produces 4.6 Nm of holding torque. The housing conforms to the NEMA 34 frame outline, and the active core has a length of 94 mm with a single laminated stack for uniform flux distribution. Standard construction includes a laminated rotor, a heavy-duty NEMA face for rigid mounting, and regular leadwires arranged in a 4-lead series bundle for drives that require series-connected phases. The winding is the standard type, so its inductance and resistance values match common POWERPAC power modules, and the simplified wiring layout keeps installation straightforward.

Electrical reliability is reinforced by an insulation resistance of 100 Megohms and a dielectric rating of 340 Vdc, reducing the chance of winding-to-frame leakage when the motor is driven from high-voltage microstep drives. Positioning consistency remains within a step accuracy window of ±3%, while the overall envelope stays compact because the stator fits inside a 3.38 in. square frame. A single straight-key shaft transmits torque directly to couplings, and there is no shaft seal, so the design favors applications where splash exposure is controlled. The unit operates without an encoder and relies on standard open-loop pulse commands for motion control.