Product Description:

The N42HRFN-LNK-NS-00 is a stepper motor produced by Pacific Scientific within the POWERPAC N Stepper Motors series. It is intended for industrial automation tasks that require indexed rotary motion without an external feedback loop. By converting discrete drive pulses into precise shaft increments, the motor positions actuators, tables, and valves in packaging, material handling, and light machining assemblies. Its heavy-duty mounting pattern supports installation in equipment that needs a robust motor platform for repeatable open-loop positioning.

With a 4.325 in. square frame that matches the NEMA 42 standard, the motor fits a predictable mounting envelope for retrofit and new machine designs. The overall body depth is 150 mm, which corresponds to a two-stack internal lamination arrangement that increases usable torque. Each electrical pulse commands one of 200 full steps, so the shaft advances by 1.8° per step. A regular leadwire connection is provided, and the eight-conductor cable exits in a standard orientation to allow either parallel or series winding connections. The motor uses a straight keyed shaft that extends from the front face, and it is supplied without a shaft seal for installations where contamination control is handled elsewhere in the machine.

The motor develops 22.2 Nm of static holding torque, which helps keep fixtures in position while drive current is maintained. An 8 lead wiring arrangement allows the windings to be configured for unipolar or bipolar drives to balance speed and torque as needed. Step accuracy is held within ± 3%, so position error remains limited across long moves. Insulation is rated for 340 Vdc and 100 megohms of resistance, providing protection against leakage in humid environments. The unit uses a standard winding and two internal stacks to produce torque, and it operates without a feedback device.