Product Description:

The T23NRHJ-LNF-NS-00 is a two-phase hybrid stepper motor produced by Pacific Scientific for the T High Torque Motors series. By translating electrical pulse trains into controlled angular motion, the unit provides open-loop positioning for feeders, labelers, and small gantry axes where fixed step accuracy is required. Its compact 56.9 mm frame width and 103.1 mm length allow installation in machinery with limited mounting depth. Because it operates through commanded step sequences, the motor is well suited to repeatable indexing tasks that do not require closed-loop servo feedback.

At the electrical interface, the motor draws 3.8 A DC on each phase, a current level matched to mid-range microstepping drives used in light industrial equipment. The copper windings present a resistance of 0.64 ohms, which affects the voltage needed to reach rated current and the amount of resistive heating during stall conditions. An inductance of 3.9 mH affects how quickly winding current can rise and fall, so the drive must use suitable chopping behavior for stable current regulation. When energized, the stator generates 2.68 N-m of holding torque, allowing moderate static loads to remain in position without a mechanical brake. The rotor advances in discrete increments of 1.8° per full step, giving 200 steps per revolution for straightforward pulse-to-angle control.

The laminated rotor has an inertia of 0.0000593 kg-m², which supports quick acceleration while helping limit overshoot during indexing moves. The shaft can accept up to 111 N of axial load and 67 N of radial load, permitting direct coupling to gears or timing pulleys without additional support bearings in many layouts. With 2 phases, the motor uses the common bipolar wiring pattern found in many Pacific Scientific drive systems. A shaft diameter of 7.94 mm, a shaft length of 20.6 mm, and a total mass of 1.5 kg help when selecting couplings and when calculating the moving mass of the axis.