Product Description:

The N31HLLJ-LNK-NS-00 motor is manufactured by Pacific Scientific within the POWERPAC N Stepper Motors series. Designed for open-loop positioning in automated machinery, the unit advances the load in discrete electrical increments so a controller can command linear or rotary moves without a resolver or encoder. Standard construction and a laminated rotor keep the air gap consistent and concentrate flux, making the motor suitable for heavy-duty NEMA face mounts in pick-and-place heads, small indexing tables, or low-speed conveyors.

The heavy frame follows NEMA 34 dimensions, giving a 3.38-inch square body that mates directly to common gearboxes and adapters. A holding torque of 4.6 Nm lets the shaft resist back-drive at rest so external brakes are unnecessary. Its total length is 94 mm, resulting in a compact stack length of one lamination section that keeps detent torque low. The stator produces exactly 200 full steps per revolution, with each electrical transition moving the rotor by 1.8°, and cumulative position error remains within ±3%. Class F insulation withstands up to 340 Vdc, and resistance exceeds 100 MΩ to reduce leakage when the drive is switched off.

Electrical termination is through a splash-proof conduit box tapped for 1/2 in. NPSC pipe thread, allowing rigid metal conduit to protect high-voltage leads from oil and coolant. Internally, a 4-lead series winding is brought to a screw terminal board; this configuration supports series or parallel drive schemes while keeping inductance high for low-speed torque. Motion is transferred through a single shaft with a straight key machined into the journal. Because the shaft has no seal, the motor should be mounted where liquid ingress is not expected. The splash-proof conduit box protects the electrical termination area from incidental exposure.