Product Description:

The N33HRFM-LNK-NS-00 is a stepper motor built by Pacific Scientific and part of the POWERPAC N Stepper Motors series. In automation equipment, it converts pulse trains from an electronic drive into incremental shaft rotation, so indexing tables, pick-and-place heads, or small conveyors can be positioned without closed-loop feedback. This operating method suits applications that rely on repeatable step counts rather than feedback from an encoder. Its heavy-duty mounting pattern gives a direct drop-in option where repeatable rotary motion is required.

In this model, a laminated rotor is assembled in three stacks to maximize torque density while keeping inertia moderate. The housing has a 3.38 in. square frame and complies with the NEMA 34 envelope, producing 200 full steps per revolution from a basic 1.8° step angle. Resulting detent and energized performance provide a holding torque of 12.4 Nm, which is suitable for moderate-load positioning without a brake. Standard windings and standard construction support consistent thermal behavior, and the single shaft carries a straight key for positive coupling to timing pulleys. The keyed shaft also helps prevent slip when the motor drives pulleys or couplings under changing load. Because the design does not include a shaft seal, the front bearing should be protected from direct fluid spray.

The electrical interface uses regular leadwires in an 8-lead configuration, which permits series or parallel phase wiring and leaves room for half-coil options. Series or parallel wiring lets the same motor be matched to different drive current and voltage combinations. The motor has an overall length of 171 mm, and its Class B insulation is tested to 340 Vdc, with a minimum insulation resistance of 100 megohms between phases and frame to reduce leakage current. Step accuracy is held within ±3%, so cumulative error remains small across multi-revolution moves.