Product Description:

The E42HCHT-LNK-NS-00 is a two-stack hybrid stepper motor manufactured by Kollmorgen within the E Hybrid Stepper Motors series. Designed for closed-loop incremental positioning, the unit combines SIGMAX magnetic construction with a NEMA 42 frame to deliver high torque at low speed while fitting common heavy-duty mounts. Its smooth shaft simplifies coupling to gearboxes or pulleys, and the four-lead parallel winding connects through a System MS connector to typical microstepping drives used in industrial automation.

With a holding torque of 2550 oz-in, the motor maintains the load position when current is applied, supporting medium-to-heavy indexing tables without external brakes. Each phase is rated for 7.9 A, so the drive electronics must supply that continuous current to achieve full torque capability. Copper losses are governed by a phase resistance of 0.41 ohms, while the coil inductance of 7.8 mH influences the electrical time constant; together, these values affect current rise time and damping during rapid step commands. The basic step increment is 1.8 degrees, allowing direct 200-step revolutions or finer resolution when the controller uses microstepping. Thermal resistance is 1.3 °C/W, so the temperature rise caused by winding losses changes predictably with the load duty cycle.

Mechanically, the rotor inertia of 0.16 oz-in-s² moderates acceleration, and an axial shaft load rating of 400 lb indicates the load the bearings can accommodate in screw-driven or belt-tensioned installations. The insulation system is classified as Class B, 130 °C and is paired with an insulation resistance of 100 megohms and a dielectric strength of 340 VDC to withstand typical drive overvoltages. Continuous service is permitted from -20 °C to +40 °C, matching the temperatures found in many factory environments without requiring auxiliary heaters or coolers. The ±1.5% step accuracy keeps positioning error within normal machine tolerances during incremental motion.