N31HRHL-LDK-NS-02 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific N31HRHL-LDK-NS-02 is a stepper motor from the POWERPAC N Stepper Motors series with a 3.38 inch square NEMA 34 frame and a motor length of 94 mm. It features a holding torque of 4.6 Nm, has a standard winding type, and offers full stepping at 200 steps per revolution with a step angle of 1.8 degrees. The motor includes a straight key double shaft and a 4 lead parallel leadwire configuration.
Internal Product Review
The N31HRHL-LDK-NS-02 is a Pacific Scientific stepper motor built with a NEMA 34 frame and heavy-duty NEMA mounting. A 1.8° step angle and ±3% step accuracy support precise indexing and dependable positioning in motion-control assemblies. Holding torque rated at 4.6 Nm and a 4 lead parallel configuration make the motor a strong choice for straightforward, high-torque stepper applications.
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Product Description:
Pacific Scientific manufactures the N31HRHL-LDK-NS-02 within its POWERPAC N Stepper Motors series. This product is a stepper motor intended for incremental motion tasks in industrial automation, where open-loop index positioning is adequate and repeatable torque is required at low and medium speeds. Because it operates in discrete step increments, it is well suited for indexing, feed control, and other start-stop motion tasks that rely on commanded pulse sequences. No feedback devices are fitted, so position is inferred from the commanded pulse count rather than from an encoder signal.
The motor is built on a NEMA 34 frame that measures 3.38 inches square and has a body length of 94 mm. Its single rotor stack and standard construction keep overall mass moderate while still delivering a step angle of 1.8°, which works with 200 full steps per revolution to provide predictable angular resolution. This combination supports repeatable positioning when the controller sends fixed pulse counts to the windings. A laminated rotor and ±3 % step accuracy improve detent linearity, and the unit provides a holding torque of 4.6 Nm for static load retention. Heavy-duty NEMA face mounting allows direct coupling to gearboxes or machine plates, and the straight-key shaft transmits torque to the driven load.
Electrical insulation is rated at 100 megohms to limit leakage paths, and the winding system is verified for up to 340 VDC dielectric withstand. These electrical characteristics help maintain separation between the windings and the motor frame during normal operation. Power enters through a 4-lead parallel configuration that matches bipolar drive architecture and supports the regular leadwire connection style. The motor has a double-ended shaft, giving designers freedom to mount an additional load or a manual encoder on the rear while the front transmits torque through the straight key. The leadwire connection keeps cabling simple in systems that already manage step counting at the controller level.
