Product Description:

The T22NRHK-LSN-NS-02 belongs to the T High Torque Motors series produced by Pacific Scientific. It is a two-phase stepper motor intended for closed-loop or open-loop positioning tasks in industrial automation, where repeatable incremental motion is required. With a phase count of 2, the device converts discrete drive pulses into controlled shaft rotation. This allows actuators, indexing tables, or feeders to move to precise angular locations without requiring external feedback hardware in open-loop use.

The motor advances in 1.8° steps, so 200 full steps complete one revolution and simplify drive programming. Each phase draws up to 6.6 A DC, a current that matches low-impedance drives and helps the coils reach the required flux rapidly. Internal copper windings present 0.2 ohms of resistance, minimizing I²R losses at the rated current. A static shaft output of 1.98 N·m holding torque lets the motor maintain position against process loads when power is applied, while the detent torque of 0.042 N·m describes the residual cogging the rotor exhibits when unenergized. The rotor’s inertia is only 0.0000395 kg·m², enabling fast acceleration and deceleration so index times stay short.

The phase inductance of 0.85 mH supports the electrical response needed for high step rates without excessive voltage boost from the drive. Mechanically, the housing is 56.9 mm wide, measures 77.7 mm in overall length, and weighs only 1 kg, so the motor fits compact axes with low moving mass. The shaft is 6.35 mm in diameter and extends 20.6 mm beyond the front bearing, which helps when coupling the motor to pulleys or hubs in tight installations. It can tolerate up to 111 N of axial load and 67 N of radial load before bearing life is affected.