Product Description:

The N31HRHJ-LKN-NS-01 is manufactured by Pacific Scientific for the POWERPAC N Stepper Motors series. This stepper motor is intended for precision indexing in automated packaging stations, and it advances by commanded step counts without feedback. It is suited for indexing tables, feed mechanisms, and similar axes that rely on repeatable step commands from a compatible controller. Electrical hookup uses a standard leadwire connection with a 4-lead parallel arrangement, while heavy-duty NEMA face mounts secure the motor to machine frames. That arrangement keeps the motor interface simple and supports use with straightforward stepper drive circuits in compact automation equipment. The motor uses standard windings, a laminated rotor, a shaft seal for dust protection, and a single-stack construction that keeps axial length moderate for enclosure use.

The motor has a 3.38 in. square frame, and that footprint matches the NEMA 34 frame class for common mounting plates. Inside, each electrical cycle produces 200 full steps, so motion is divided into 1.8-degree increments; the 1.8° step angle is the commanded movement per pulse. When all coils are energized, the shaft resists external load with 4.6 Nm of holding torque, which helps keep fixtures or lead screws in position while motion is stopped. This combination of frame size, step resolution, and holding capability supports open-loop positioning on machinery that uses repeatable step commands.

For enclosure planning, the body length is 94 mm, which helps with cabinet spacing and airflow around the housing. Winding insulation withstands up to 340 Vdc and maintains a resistance of 100 Megohms, which helps limit leakage current during operation. During motion, each target position is reached within ± 3% of the commanded angle, an accuracy level suitable for pick-and-place tables and labeling heads that do not use encoders. The insulation rating also supports use in cabinets where electrical isolation between the windings and the frame must remain stable over time. Cabinet layout and drive selection can be based on those length, insulation, and accuracy values.