N31HRLL-LNK-NS-00 Pacific Scientific
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The Pacific Scientific N31HRLL-LNK-NS-00 is a stepper motor from the POWERPAC N Stepper Motors series with a 3.38 inch square NEMA 34 frame and heavy duty NEMA mounting. It features a holding torque of 4.6 Nm, a single straight key shaft, and operates with 200 full steps per revolution and 1.8 degree step angle. The motor is constructed in standard style with a 4 lead series configuration and insulated to 340 Vdc.
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Product Description:
The N31HRLL-LNK-NS-00 is a hybrid stepper motor built by Pacific Scientific for the POWERPAC N Stepper Motors series. Designed for open-loop positioning, it converts pulse trains from indexers or microstep drives into precise shaft increments for conveyors, pick-and-place axes, and similar automation devices. The unit uses laminated rotor stacks and standard windings to deliver incremental motion without internal feedback hardware, reducing system complexity. This operating method suits applications where the load is predictable and accurate pulse tracking is maintained by the drive.
It occupies a compact 3.38 in. square frame that matches the NEMA 34 mounting pattern and supports heavy-duty face installation on machinery bases. Each revolution is subdivided into 200 full steps, and the lamination geometry limits positional deviation to ± 3%, allowing repeatable indexing when powered by a conventional two-phase drive. A holding torque of 4.6 Nm keeps loads stationary when the phases are energized, making the motor suitable for vertically loaded tables. The motor uses a regular leadwire connection through a 4-lead series harness, so the phases can be wired directly to terminal blocks or drive connectors. No encoder is fitted, so motion control relies on commanded step counts rather than returned position data.
Electrical insulation is rated for 340 Vdc, and leakage paths are verified at 100 Megohms, permitting reliable operation on higher bus voltages common in factory controllers. The overall housing length is 94 mm, delivering a single-stack magnetic circuit that balances torque with compact depth for tight machine envelopes. Step size is specified at 1.8°, matching common drive tables and enabling interchange with other N-frame motors. A single straight-key shaft extends from the front face, and there is no shaft seal, so the motor should be mounted in clean, dry zones. Standard winding impedance and the laminated rotor allow consistent thermal performance across the full duty range, while the keyed output supports positive torque transfer to compatible couplings or driven components.
