Product Description:

The N33HRHJ-LDK-NS-00 is a stepper motor manufactured by Pacific Scientific for the POWERPAC N Stepper Motors series. It converts incremental phase energization into precise rotation without external feedback, making it suitable for material feed drives, small gantries, and indexing equipment in automation cells. The motor is built with standard construction, uses a laminated rotor, and incorporates a double shaft that carries a straight key so torque can be transferred from either end.

This model mounts to machinery with a heavy-duty NEMA flange sized to the NEMA 34 standard. Three rotor stacks and standard windings give a holding torque of 12.4 Nm, maintaining load position when the phases are locked. Each step advances the shaft by 1.8°, and one mechanical revolution therefore contains 200 full steps, simplifying pulse-rate calculations in the controller. The overall body length is 171 mm, accommodating the 4-lead parallel winding that reduces phase inductance for higher slew rates. Leads exit through a regular leadwire connection, and the absence of a shaft seal limits the motor to clean or protected enclosures. A heavy laminated core, standard winding type, and a double shaft with a straight key support repeatable torque delivery in production duty.

The motor has a 3.38 in. square frame, and the insulation system withstands up to 340 Vdc while maintaining at least 100 Megohms of resistance, guarding against leakage during high-potential testing. Step accuracy stays within ± 3%, so accumulated positioning error is minimal over long move sequences even without feedback. The standard construction, lack of encoder, and 4-lead parallel wiring keep the design straightforward, while the laminated rotor and three-stack configuration preserve dynamic response. A layout without a shaft seal reduces friction for lower detent torque, and the regular leadwire exit eases integration into existing cable harnesses.