P22NSHA-LNF-NS-03 Pacific Scientific
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The Pacific Scientific P22NSHA-LNF-NS-03 is a step motor from the POWERMAX II P Motors series, featuring a NEMA 23 frame size and standard construction. It delivers a holding torque of 1.39 Nm and a step angle of 1.8 degrees, with a single flat shaft measuring 6.35 mm in diameter. This model operates with 6.5 A DC rated current per phase and has an insulation class of B, rated for 340 Vdc.
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Product Description:
The P22NSHA-LNF-NS-03 hybrid stepper motor is produced by Pacific Scientific as part of the POWERMAX II P Motors series. Designed for open-loop positioning tasks in industrial automation, the motor receives pulse commands from a drive or PLC and converts them into discrete shaft rotation without the need for feedback devices. This operating method suits indexing and positioning duties where commanded step count determines shaft movement.
Built on a NEMA 23 frame, the motor uses a standard rotor and housing. It installs with the common mounting flange and uses a 6.35 mm single shaft machined with a flat for set-screw couplings. It develops 1.39 Nm of holding torque, while axial and radial load limits of 58 N and 89 N help protect the bearings during belt or gear drives. Each of the four parallel leads carries 6.5 A DC, and with winding code A this current matches low-voltage chopper drives. The electrical circuit has a phase inductance of 0.80 mH and a resistance of 0.21 Ω, which minimize electrical time constants and improve response. Rotor displacement occurs in 1.8° steps, aided by two stator stacks and a rotor inertia of 0.025 × 10⁻³ kg·m² for moderate acceleration capability. Step accuracy remains within ±1.5%. The motor uses standard construction with no feedback, Class B insulation, 100 MΩ insulation resistance, a 340 Vdc dielectric rating, and 4.5 °C/W thermal resistance.
Resolution reaches 200 steps per revolution, eliminating the need for micro-stepping in many light-duty axes. Continuous service is rated from -20 °C to +40 °C, and the insulation system tolerates 130 °C winding temperature within that range. With a mass of 1.13 kg, the unit is easy to mount on small frames yet still handles the specified dynamic forces. The NEMA mounting style, 4-lead wiring, standard rotor type, and no-feedback configuration support integration in printer stages, pick-and-place heads, and medical dispensers. The four-lead arrangement also allows straightforward connection to compatible bipolar stepper drives.
Frequently Asked Questions about P22NSHA-LNF-NS-03:
Q: What is the holding torque of the P22NSHA-LNF-NS-03 stepper motor?
A: The P22NSHA-LNF-NS-03 stepper motor provides a holding torque of 1.39 Nm.
Q: What frame size and mounting style does the P22NSHA-LNF-NS-03 use?
A: This model features a NEMA 23 frame size for its mounting style.
Q: What is the shaft diameter and configuration of the P22NSHA-LNF-NS-03 motor?
A: The shaft diameter is 6.35 mm and is configured as a flat single shaft.
Q: What insulation class and resistance does the P22NSHA-LNF-NS-03 provide?
A: The insulation class is rated at Class B (130°C) with an insulation resistance of 100 Megohms.
Q: How many connection leads does the P22NSHA-LNF-NS-03 have, and does it include feedback?
A: This model operates with four parallel leads and no feedback encoder option.
