n31HRLH-LNK-NS-00 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific n31HRLH-LNK-NS-00 is a stepper motor from the POWERPAC N Stepper Motors series with a holding torque of 4.6 Nm and features a NEMA 34 heavy duty mounting type. It uses a 3.38 inch square frame, has a single straight key shaft without shaft seal, and a 4 lead series leadwire configuration. The motor is 94 mm in length with a laminated rotor design and does not include feedback.
Internal Product Review
The n31HRLH-LNK-NS-00 is a Pacific Scientific POWERPAC N stepper motor with a NEMA 34 frame and regular leadwire connection. A laminated rotor and 4 lead series configuration support stable torque delivery and straightforward integration. The 4.6 Nm holding torque makes this unit a strong choice for demanding positioning applications.
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Product Description:
The n31HRLH-LNK-NS-00 is a hybrid stepper motor produced by Pacific Scientific for the POWERPAC N Stepper Motors series. In automated machinery, it provides incremental motion without closed-loop sensors, so a drive can position loads by counting steps rather than processing encoder feedback. This operating method makes the unit a compact positioning element for indexing tables, light conveyor diverters, and small gantry axes where repeatable step accuracy is required. The motor converts a sequence of electrical pulses into discrete angular movements, allowing the connected drive to regulate travel distance and direction through pulse control.
The motor develops a holding torque of 4.6 Nm, allowing it to maintain shaft position against process loads while the windings are energized. Its 3.38-inch square frame establishes the outer envelope, while the NEMA 34 flange provides a standardized mounting bolt pattern and pilot diameter for motors in the same size class. A 4-lead series configuration is provided through regular lead wires, allowing the phases to be connected for high-torque, low-current operation with a compatible stepper drive. The overall body length is 94 mm, which affects the space required behind the mounting surface and the available magnetic stack length. The rotor uses laminated steel segments that reduce eddy-current losses and improve magnetic coupling between the stator teeth and permanent magnets during each electrical pulse. These electrical and magnetic properties support controlled incremental rotation under energized holding and motion conditions.
For rigid attachment to machinery, the frame has a heavy-duty NEMA mounting face that withstands greater bolt preload than a light-duty mounting pattern. The single shaft is machined with a straight key, providing positive torque transfer to pulleys or couplings without relying only on clamping force. The front end is supplied without a shaft seal, so the motor should be installed away from liquid spray and airborne abrasive material unless an external enclosure or seal is used. A single rotor stack and standard winding support the motor’s compact arrangement. Four regular lead wires provide the electrical connection to the stepper drive or motion controller. Proper strain relief should be applied to the lead-wire exit so movement and vibration do not place unnecessary stress on the phase connections.
