Product Description:

Kollmorgen's H42RCFB-LNK-NS-00 belongs to the H Hybrid Motors series and is a two-stack hybrid stepper motor intended for position or speed control in automated machinery. By combining permanent-magnet and variable-reluctance operating principles, the unit delivers incremental motion for indexers, pick-and-place axes, and light conveyor sections. Its hybrid stepper design supports repeatable indexing in packaging, assembly, and transfer equipment where controlled incremental movement is required. The motor uses a NEMA 42 frame and standard construction practices, so it can mount directly to common machine plates while keeping wiring simple through an MS system connector.

A detent torque of 0.35 Nm helps hold the shaft in place when the windings are unpowered, which reduces drift between incremental moves. The NEMA 42 frame uses a 76.2 mm bolt circle and three #10-32 UNC-2B threaded holes, allowing secure attachment to heavy brackets without additional adapter plates. A step angle of 1.8 degrees yields 200 discrete positions per revolution, and the specified step accuracy is ±1.5%. The motor also has a smooth shaft with a diameter of 15.875 mm, which supports coupling to belts, gears, or direct-drive hubs while maintaining concentric alignment. This shaft arrangement suits common couplings used on indexing tables and small transport mechanisms.

The windings use insulation rated to Class B, 130 °C and can withstand up to 340 Vdc, while the insulation resistance is 100 MΩ for additional protection against leakage current. Heat leaves the coils through a 1.3 °C/W thermal path, and the motor mass of 8.26 kg helps moderate temperature rise during operation. A shaft length of 55.63 mm supports the stated rotor inertia of 1.129 × 10⁻³ kg·m² during acceleration. An 8-lead MS connector allows series or parallel wiring, and the operating temperature range of -20 °C to +40 °C supports use across typical plant conditions.