Product Description:

The H41RCFT-LNK-NS-00 is a hybrid stepper motor built by Kollmorgen for the H Hybrid Motors series. By combining permanent-magnet and reluctance principles, it turns discrete current pulses into fixed angular motion for conveyors, metering pumps, and indexing fixtures used throughout automated production. The device provides open-loop positioning, eliminating the need for encoders in many machine designs. This makes it suitable for repeatable positioning tasks where closed-loop feedback is not required. Its housing, flange, and shaft dimensions follow common industry standards, which supports installation in standard machine layouts.

Mechanical integration centers on the NEMA 42 frame, which uses a 4.2-inch square face and positions screws on a 3.000 in bolt circle. A pilot diameter of 2.186 in aligns the motor, and a 0.6250 in smooth shaft mates directly with couplings. Axial force capacity reaches 400 lb, while radial loading is limited to 140 lb, helping keep bearing loads within the intended range. When both phases are energized, the rotor withstands 828 oz-in of holding torque. Heat produced in the single-stack, standard construction is conducted through a 1.8 °C/W thermal path. Each command pulse advances the shaft by 1.8 degrees, and eight leads exit through a System MS connector to support series or parallel wiring.

The motor generates 200 full steps per revolution, giving dense position granularity. Inherent repeatability keeps cumulative error within ±1.5 % of the commanded angle. Rotor inertia of 0.080 oz-in-s² balances acceleration against load, and the winding is tuned for strong low-speed torque. The housing and laminated stack weigh 10.9 lb, which helps limit moving mass on gantry axes. Electrical endurance is supported by Class B insulation rated to 130 °C, a ground resistance of 100 megohms, and an insulation margin of 340 Vdc. Continuous service is supported between −20 °C and +40 °C ambient, provided airflow removes waste heat along the established thermal path.