Product Description:

The P22NRXA-LDS-M1-02 is a hybrid stepper motor manufactured by Pacific Scientific as part of the POWERMAX II P Motors series. The unit converts pulse commands from indexers or open-loop drives into incremental rotary motion for machine slides, packaging stations, and other positioning axes used in industrial automation. By combining a laminated NEMA frame with rare-earth rotor magnets, the motor produces high holding torque at low speed without feedback devices. This makes it suitable where precise repeatability rather than high servo bandwidth is required.

The motor is built on the NEMA 23 frame size, so it aligns directly with standard mounting brackets and the specified NEMA face. Its double-ended shaft passes through a bearing set with an inner race that measures 30 mm in diameter, allowing couplings or encoders to be fitted on either side. A basic step angle of 1.8 degrees yields 200 discrete full steps per revolution, and the ±1.5% step accuracy supports repeatable indexing without closed-loop correction. The laminated stack count is two, while electromagnetic excitation is supplied by a 2-phase, winding type A configuration that matches most bipolar micro-stepping drives. Regular leadwires exit through a receptacle in the standard housing, and a machined boss provides an encoder mounting provision for applications that require speed or position verification.

The motor operates in ambient temperatures from -20 °C to +40 °C, enabling reliable service in unconditioned enclosures. Internally, Class B, 130 °C insulation works with 100 megohms of insulation resistance and a 340 VDC dielectric rating to guard against moisture or overvoltage conditions. Rotor inertia of 3.57 oz-in-s² ×10^-3 helps limit settle time when micro-stepping, while the neodymium-iron-boron rotor material provides high magnetic energy density. Bearings support up to 20 lb of radial load and 13 lb of axial thrust, and the NEMA mounting flange secures the standard rotor in place without additional brackets.