Product Description:

The H22NRFD-LNN-NS-00 is a hybrid step motor manufactured by Kollmorgen within the H Hybrid Motors series for incremental motion tasks in packaging lines, pick-and-place modules, and small gantries. Its standard construction includes a smooth shaft for direct coupling and a regular lead-wire termination that provides eight individual conductors for series or parallel phase wiring. Dual rotor stacks inside the NEMA housing work with the stator teeth to convert commanded phase sequences into precise mechanical increments, letting controllers move loads in exact, repeatable steps.

High static capability is provided by a holding torque of 156 oz-in (1.10 Nm), while detent torque is limited to 4.6 oz-in so unpowered drift remains minor. Each winding draws 2.4 A in parallel and has 1.25 Ω of resistance and 5.5 mH of inductance, allowing quick current rise for high step rates. A full revolution requires 200 commands, and every pulse advances the rotor by 1.8 degrees; cumulative error stays inside the ±1.5% step-accuracy range. Copper losses pass through a thermal resistance of 4.4 °C/W to the case, and the Class B system with 100 MΩ insulation resistance withstands 340 Vdc, maintaining dielectric margin during transients. The 0.0031 oz-in-s² rotor inertia supports rapid acceleration without excessive overshoot.

The motor occupies a NEMA 23 frame with a 3.06-inch body length and weighs only 2.1 lb, simplifying mounting on compact plates and linear carriages. The unit can operate from -20 °C to +40 °C; within this range, the Class B insulation preserves a 130 °C thermal ceiling, and no feedback device is required because the open-loop step sequence determines position. Standard NEMA mounting holes line up with gearboxes or brackets, and the absence of special shaft features keeps coupling straightforward. The two-stack magnetic circuit complies with the series mechanical layout while keeping assembly uncomplicated.