N31HRFK-LNK-NS-00 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific N31HRFK-LNK-NS-00 is a stepper motor from the POWERPAC N Stepper Motors series featuring a NEMA 34 heavy duty mounting type and a 3.38 inch square frame. It provides a holding torque of 4.6 Nm, uses an 8-lead regular leadwire connection, and has 200 full steps per revolution with a step angle of 1.8°. The motor features standard construction, a single straight keyed shaft, and measures 94 mm in length.
Internal Product Review
The N31HRFK-LNK-NS-00 is a Pacific Scientific stepper motor built on a NEMA 34 frame with standard construction. Technical performance stands out with 200 full steps per revolution and ±3% step accuracy for consistent indexing. Holding torque of 4.6 Nm makes the unit a strong choice for demanding positioning duty.
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Product Description:
The N31HRFK-LNK-NS-00 is a motor manufactured by Pacific Scientific as part of the POWERPAC N Stepper Motors series. It converts pulse commands from microstep or full-step drives into controlled rotary motion for positioning tasks in industrial automation. This makes it suitable for indexing, feed control, and other repeatable motion duties where step-by-step positioning is required. Its laminated rotor and single-shaft design support bidirectional torque delivery, and the 3.38-inch square housing matches the NEMA 34 footprint used on many material-handling stages. The square body format also fits common brackets and couplings used with this frame size.
Internally, the stator uses standard windings arranged for an 8-lead connection, allowing either series or parallel phase wiring. That arrangement gives the drive some flexibility when the application calls for a different balance of speed and torque from the same motor platform. The motor provides 200 full steps per revolution from a 1.8° step angle, and this motion is held within ± 3% step accuracy across the single-stack magnetic circuit. Because no encoder is installed, the motor operates with open-loop current regulation, so shaft position is determined by commanded pulses from the drive. A laminated rotor and straight-key shaft deliver a holding torque of 4.6 Nm, and the winding insulation withstands 340 Vdc.
Regular lead wires exit the housing through molded grommets in an 8-lead arrangement that accepts both unipolar and bipolar drive topologies. This connection style avoids the extra space required by a rear connector and supports routing through compact machine covers or cable channels. The stator winding insulation maintains 100 Megohms of resistance at ambient temperature, which helps limit leakage in humid or mist-prone settings. Overall body length is 94 mm, and the 3.38 in. square frame fits tight machine envelopes without extending beyond standard brackets. The standard construction does not include a shaft seal, so dusty installations may require external bellows.
