Product Description:

The M22NRXB-LNN-NS-02 hybrid stepper motor is manufactured by Pacific Scientific for the POWERMAX II M Motors series. This two-phase device converts pulse trains from indexers or microstepping drives into precise rotary motion, letting OEMs build positioning tables, pick-and-place units, or metering pumps without closed-loop feedback. Its standardized NEMA mounting interface allows direct coupling to gearheads, lead screws, or timing-belt pulleys used throughout general automation.

The motor’s frame follows the NEMA 23 dimensional code, so the 56 mm square face and pilot diameter align with common brackets and bearing supports. Static load capacity is delivered through a holding torque of 1.79 Nm, which secures vertical loads whenever the rotor is energized but not turning. A full electrical step equals 1.8 degrees, giving a base resolution of 200 steps per revolution, and microstep controllers can subdivide these increments for smoother velocity profiles. Mechanical positioning repeatability stays within the stated ±1.5% step accuracy. Two laminated stator stacks improve torque density while maintaining a compact length, and the regular lead-wire connection style simplifies wiring. Continuous service is supported across the -20 °C to +40 °C ambient range, so the unit can be mounted in unconditioned enclosures on factory floors.

The motor uses a Class B 130 °C insulation system with a 4.5 °C/W thermal resistance, 100 MΩ insulation resistance, and a 340 Vdc dielectric rating. The shaft can accept axial forces up to 58 N and radial forces up to 89 N, suiting belt tensioners or helical couplings without premature bearing wear. A single, smooth shaft simplifies encoder retrofits or coupler installation, and the standard rotor construction preserves low detent torque. Electrical wiring is brought out through a receptacle, which keeps the connection compact, and winding type B supports common bipolar drive voltages. Overall mass is only 1.13 kg, which helps limit moving inertia when the motor is installed on gantries or end effectors.