Product Description:

The H33NRFC-LNN-NS-00 is a hybrid stepper motor produced by Kollmorgen within the H Hybrid Motors series. This three-stack device follows the NEMA mounting pattern and is built for incremental motion tasks in automated equipment where open-loop control is acceptable. It translates pulse commands from a stepper drive into repeatable shaft movement, providing positioning accuracy for pick-and-place axes, small conveyors, and metering pumps. Its hybrid rotor design supports stable low-speed indexing and consistent step response in compact motion systems.

The motor uses a NEMA 34 frame, which sets the flange dimensions and hole spacing used in standardized machinery. Each full step advances the rotor by 1.8 degrees, and the four-phase arrangement produces 200 discrete steps per revolution for predictable angular movement. Winding protection meets Class B, 130 °C thermal limits, allowing safe operation as internal temperature rises during continuous duty. An 8 lead configuration supports series or parallel wiring, so the motor can be matched to different drive voltage and current requirements. Step accuracy remains within ±1.5%, the stator assembly uses standard construction, and the connection style is regular leadwire with 12 inches of #22 AWG conductors exiting the housing in a NEMA-compliant layout. The insulation system withstands 340 Vdc, and the three laminated stacks increase detent torque without enlarging the external envelope.

A bolt circle of 3.875 in and a pilot diameter of 2.875 in help maintain concentric alignment when the motor is mounted to a gearbox or load flange. The smooth shaft measures 0.3750 in in diameter, allowing direct coupling through set-screw or clamp-style hubs commonly used on indexing mechanisms. Rated ambient limits span -20 °C to +40 °C, which suits typical cabinet or machine-side installations. Electrical insulation resists moisture and contaminants up to 100 Megohms, helping maintain winding isolation during normal industrial operation.