Product Description:

The T23NRHK-LNF-NS-00 is a hybrid stepper motor produced by Pacific Scientific as part of the T High Torque Motors series. This two-phase device converts discrete electrical pulses into indexed shaft rotation, making it suitable for pick-and-place tables, indexing conveyors, and other positioning axes in industrial automation. By combining a compact NEMA-23 frame with internal high-energy magnets, the motor delivers high static torque while remaining simple to drive with open-loop controllers. Its hybrid construction combines permanent-magnet and toothed-rotor features, which helps the shaft hold commanded positions in repeatable increments. That operating style is useful in machines where the controller sends pulse trains instead of continuous analog speed commands.

Electrically, the motor draws a per-phase current of 6 A DC and presents a winding resistance of 0.28 Ω at 40 °C, so the power stage must be sized for roughly 1.7 V across each phase at rated load. The phase inductance of 1.5 mH limits current rise and supports stable operation with chopped-current drives. Standard two-phase construction produces a fundamental step of 1.8°, yielding 200 full steps per revolution before subdivision. Static holding capability reaches 2.68 N·m, and the detent torque of 0.049 N·m provides residual alignment when the windings are off. With two electrical phases energized sequentially, the motor maintains smooth incremental motion without feedback devices. When a microstepping drive is used, the same winding set can produce smaller commanded moves and quieter low-speed rotation. The electrical characteristics also suit applications that need firm holding at standstill between indexed moves.

Mechanically, the laminated rotor carries an inertia of 0.0000593 kg·m², balancing acceleration response against load coupling. The shaft tolerates an axial load of 111 N and a radial load of 67 N, so belt tensions and end thrust must remain below these limits during operation. Overall length is 103.1 mm, while the housing width of 56.9 mm matches the NEMA-23 footprint. The motor weighs 1.5 kg, which helps limit moving mass when it is mounted on gantries or pick heads. A ground steel shaft 7.94 mm in diameter projects 20.6 mm beyond the front face for coupler or pulley attachment. The compact housing fits machine layouts where space around the drive axis is limited, and the front shaft extension supports direct connection to common motion components.