P22NRXB-LNN-NS-00 Pacific Scientific
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The Pacific Scientific P22NRXB-LNN-NS-00 is a stepper motor from the POWERMAX II P Motors series with a NEMA 23 frame size and 1.51 Nm holding torque. It features a smooth single shaft with a 0.375 inch diameter, uses standard construction, and has a rated current of 2.3 A in series configuration. The motor is insulated to Class B, operates between -20°C and +40°C, and weighs 1.13 kg.
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Product Description:
The P22NRXB-LNN-NS-00 is a hybrid stepper motor manufactured by Pacific Scientific and supplied within the POWERMAX II P Motors series. It is intended for open-loop or micro-stepped positioning tasks where repeatable incremental motion is required in industrial automation equipment. When driven from a compatible bipolar driver, the stator windings energize in sequence so the rotor advances fixed angles, giving machine builders a straightforward way to index conveyors, adjust tooling, or actuate light mechanical fixtures without closed-loop feedback.
Mechanically, the motor occupies a NEMA 23 frame and follows the NEMA flange pattern for easy direct mounting. Its standard construction houses two rotor stacks, delivering a holding torque of 1.51 Nm when the windings are wired in series or parallel. Each electrical step advances the shaft by 1.8 degrees, so one full revolution requires 200 command pulses and is held within a ±1.5% step accuracy. The smooth single shaft is prepared for couplers, while permitted axial and radial loads reach 13 lb and 20 lb respectively. With a rotor inertia of 0.025 × 10⁻³ kg·m² and a mass of 1.13 kg, the motor balances response with load capacity. Power exits through a regular lead-wire harness that mates to a receptacle on the drive side, matching its rated phase current of 2.3 A.
Electrically, the two-phase winding set is wound to type B and presents a phase resistance of 1.52 Ω and a phase inductance of 8.4 mH when wired in series, giving predictable current rise time. Steady thermal conditions are aided by a 4.5 °C/W motor-to-ambient path, while the detent torque of 0.049 Nm keeps the shaft from drifting when power is removed from the coils. Class B insulation is rated for 130 °C, withstands 340 Vdc, and maintains 100 MΩ resistance to ground. The unit is specified for service from -20 °C to +40 °C without derating and relies on passive convection because no feedback transducer is fitted. A single smooth shaft with a diameter of 0.375 in completes the mechanical interface.
Frequently Asked Questions about P22NRXB-LNN-NS-00:
Q: What is the holding torque of the P22NRXB-LNN-NS-00 motor?
A: This model has a holding torque of 1.51 Nm when wired in series or parallel.
Q: What frame size does the P22NRXB-LNN-NS-00 utilize?
A: The P22NRXB-LNN-NS-00 features a NEMA 23 frame size for compatibility with a wide range of motion control systems.
Q: What is the step accuracy of the P22NRXB-LNN-NS-00 stepper motor?
A: Step accuracy is rated at ±1.5%, delivering precise movement control.
Q: How many steps per revolution does the P22NRXB-LNN-NS-00 offer?
A: This stepper motor provides 200 steps per revolution with a step angle of 1.8 degrees.
Q: Does the P22NRXB-LNN-NS-00 include an encoder or any feedback option?
A: No feedback device is included; the P22NRXB-LNN-NS-00 is supplied without encoder or resolver options.
