Product Description:

The P22NRXA-LDF-M1-00 is a two-phase hybrid stepper motor manufactured by Pacific Scientific for the POWERMAX II P Motors series. It converts command pulses into incremental rotation for positioning duties in pick-and-place heads, indexing tables, and compact gantry axes. The device follows standard NEMA practices and accepts straightforward bipolar drive schemes, giving it a practical fit wherever a NEMA 23 footprint is required.

With a bipolar holding capability of 1.39 Nm, the motor maintains shaft position under static load, while the detent torque of 0.049 Nm quantifies residual cogging when de-energized. The motor has a step angle of 1.8 degrees and produces 200 full steps per revolution. Combined with ±1.5 % step accuracy and its two-phase winding, this resolution suits open-loop micro-stepping drives. The A-type winding uses Class B, 130 °C insulation, with 100 MΩ resistance and a 340 Vdc dielectric rating. Thermal performance is characterized by 4.5 °C/W resistance, while the 0.025 ×10⁻³ kg·m² rotor inertia supports rapid acceleration and deceleration. Continuous duty is permitted between -20 °C and +40 °C, which matches typical control-cabinet environments.

Mechanically, the double-ended shaft is ground to 0.2500 in diameter, incorporates a flat for set-screw coupling, and tolerates up to 20 lb of radial force and 13 lb of axial thrust. Overall length is 3.10 in, and the assembly weighs 1.13 kg, which helps on weight-sensitive axes. The frame adheres to NEMA 23 dimensions and mounts through the standard NEMA flange. Regular leadwires exit through a molded receptacle, and the housing includes provision for optional encoder mounting. Standard construction, a conventional rotor, and receptacle connections support consistent use within the series.