Product Description:

The P22NRXE-LNN-NS-00 is a two-phase stepping motor manufactured by Pacific Scientific as part of the POWERMAX II P Motors series. It converts drive pulses into 1.8-degree increments, giving 200 discrete positions per revolution for indexing tables, small conveyors, and light gantry axes. The unit is supplied in a standard NEMA package with a smooth single shaft and without an encoder, so position verification is handled externally by the motion controller.

The motor uses a NEMA 23 frame and delivers a holding torque of 1.38 N·m, allowing stable load retention when current is applied. A step angle of 1.8 degrees with a step accuracy of ±1.5% supports consistent positional resolution and repeatability. During idle operation, rotor cogging is limited to 0.049 N·m of detent torque, which helps reduce unintended movement. Overall length is 78.7 mm, and a two-stack rotor with 0.000025 kg·m² of inertia supports quick acceleration. The single smooth shaft measures 6.35 mm in diameter and 20.60 mm in extension, matching common couplings. Parallel winding values include 1.64 A per phase and 100 MΩ insulation resistance, allowing connection to mid-range bipolar drives.

Electrical dynamics include a winding inductance of 12.6 mH and a resistance of 2.7 Ω, so current rise times remain within the limits of most microstepping drivers while keeping copper losses moderate. The shaft can accept up to 60 N of axial load and 90 N of radial load without exceeding bearing ratings. Class B insulation supports a 130 °C hot-spot temperature, and the 340 VDC insulation voltage rating provides margin against drive transients. Operation is permitted from -20 °C to +40 °C. The 1.13 kg frame uses the standard NEMA mounting pattern and a regular lead-wire receptacle connection style.