Product Description:

The N43HRFM-LNK-NS-00 is a hybrid stepper motor manufactured by Pacific Scientific as part of the POWERPAC N Stepper Motors series. It translates digital pulse trains into incremental motion for pick-and-place axes, indexing conveyors, and metering pumps that do not rely on closed-loop feedback. A laminated rotor, a single shaft with a straight key, and a heavy-duty NEMA mounting pattern give the unit direct coupling options to driven loads while preserving positioning repeatability within its mechanical limits.

The motor delivers a holding torque of 30.6 Nm, which is the load the rotor can restrain while it is energized and motionless. Each revolution is divided into 200 full steps per revolution by a 1.8° step angle set by the rotor-stator tooth geometry. Positional deviation for every commanded move is limited to ±3% step accuracy, which helps keep cumulative error low during long sequences. A 4.325 in. square frame provides a mounting face that mates with standard brackets, and the internal stack of three laminations raises torque density without extending the overall width. The motor uses regular leadwire connections, an 8-lead configuration, and standard windings that allow series or parallel phase wiring to match a wide range of drive currents. Because no encoder is fitted, the control electronics must count pulses to track rotor angle.

The frame size is classified as NEMA 42, so the bolt circle and pilot diameters align with large-scale motion platforms. A 201 mm motor length accommodates the 3-stack construction while fitting inside deep enclosures. Electrical insulation withstands up to 340 Vdc and exhibits 100 Megohms of resistance, which limits leakage current and supports operation on high-voltage micro-stepping drives. The laminated rotor and winding system support the thermal load of the 3-stack design, even though the shaft end is supplied without a shaft seal. The absence of feedback devices simplifies wiring, and the regular leadwire style supports direct connection to compatible drive terminals.