Product Description:

The P22NRXA-LDN-NS-00 is a two-stack hybrid stepper motor produced by Pacific Scientific as part of the POWERMAX II P Motors series. It converts command pulses from a drive into predictable angular displacement for small indexing tables, labelers, and light pick-and-place axes in automated equipment. The motor mounts to machinery with a NEMA face, and its regular leadwire connection style simplifies wiring to a controller through an external receptacle. Standard construction and a smooth double-ended shaft allow mechanical loads to be mounted on either end without additional machining.

The motor uses a NEMA 23 frame with a 58 mm square flange. Its fundamental step increment is 1.8 degrees, so one revolution contains 200 full steps for repeatable positioning when the drive sends calibrated pulse trains. The windings use Class B, 130 °C insulation to tolerate elevated copper temperature, and the total package length is limited to 3.10 in (78.7 mm). Winding type A sets the phase resistance for the commanded current. The unit does not include an encoder, so positioning accuracy depends on the motor’s inherent step tolerance, and a regular leadwire harness exits through a molded receptacle for quick disconnect.

Dynamic response is influenced by a rotor inertia of 0.025 kg·m² × 10^-3, which supports rapid acceleration in moderate-load axes. The smooth double shaft measures 0.2500 in (6.35 mm) in diameter and is centered by a 1.500 in pilot for concentric mounting. Thermal energy from the coils moves through the housing with a resistance of 4.5 °C/W, and the overall mass of 1.13 kg adds heat capacity for intermittent high-speed duty. Electrical insulation measures 100 megohms and can withstand 340 VDC between phase sets and the frame. Continuous service is permitted from -20 °C to +40 °C.