Product Description:

The T23NRLH-LNF-NS-00 is a bipolar stepper motor produced by Pacific Scientific within the T High Torque Motors series. This two-phase unit converts direct electrical pulses from an indexer or drive into incremental angular motion for position control in pick-and-place systems, small conveyors, and other industrial automation axes. It employs permanent-magnet rotor stacks to generate high holding torque while remaining compact.

The motor develops a holding torque of 2.68 N·m, providing high static load capacity when the shaft is energized and stationary. Each phase draws 3 A DC, so the drive must supply that current continuously; the line-to-line resistance is 1 ohm, which contributes to copper losses. A step angle of 1.8° yields 200 discrete positions per revolution, enabling open-loop positioning without an encoder. The phase inductance is 6.2 mH, which limits current rise time and smooths torque at higher micro-stepping resolutions. With a rotor inertia of 0.0000593 kg·m², the shaft can accelerate quickly while still damping overshoot. Matched with the 0.049 N·m detent torque, this inertia helps prevent missed steps during rapid velocity changes. The motor’s two-phase winding topology interacts with a driver in full- or half-step modes to translate digital command sequences into repeatable motion.

An axial thrust of 111 N and a radial side load of 67 N help protect the bearings from premature wear in belt or gear couplings. The laminated frame measures 103.1 mm in overall length and 56.9 mm in width, so it fits NEMA-23 mounting patterns while keeping enclosure space to a minimum. Total mass is 1.5 kg, giving a favorable torque-to-weight ratio for mobile stages. A ground steel shaft with a diameter of 7.94 mm and an extension of 20.6 mm provides adequate surface for coupler engagement without additional machining.