H33HRFA-LNK-NS-00 Kollmorgen
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The Kollmorgen H33HRFA-LNK-NS-00 is a motor from the H Hybrid Motors series with a NEMA 34 frame size and a holding torque of 666 oz-in. It features a heavy duty NEMA mounting style, smooth shaft with a diameter of 0.5 inches, and operates at a step angle of 1.8 degrees for 200 steps per revolution. The unit has 8 lead connections, an insulation class of B rated at 130°C, and weighs 7.6 pounds.
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Product Description:
The H33HRFA-LNK-NS-00 hybrid stepper motor is manufactured by Kollmorgen for the H Hybrid Motors series and serves indexing and moderate-torque positioning duties in automated machinery. Its 5.33 in body length suits compact frames, and the standard mounting pattern supports straightforward installation in existing machine layouts. It is suitable for conveyors, feeders, and other equipment that relies on repeatable open-loop motion. The unit uses leadwires, and eight 22 AWG conductors allow series or parallel phase connections to match different drive requirements. Three rotor stacks support the magnetic circuit, and the smooth shaft end simplifies coupling to external motion components. Class B insulation tolerates 130 °C, providing thermal headroom for continuous duty.
Key performance figures stem from the NEMA 34 frame layout. The motor provides a holding torque of 666 oz-in for stationary load holding at standstill. The shaft advances 1.8 degrees per full step, so one revolution equals 200 increments, and inherent accuracy stays within a 1.5% step error band. These step characteristics make resolution planning straightforward when the motor is paired with a lead screw or belt reduction. A rotor inertia of 0.025 oz-in-s² supports responsive acceleration while helping the system remain stable under moderate loads. This balance of torque and inertia suits indexers, slide tables, and similar positioning axes.
A 0.5000 in smooth shaft interfaces with clamp hubs, which helps limit backlash in microstepping applications. The motor weighs 7.6 lb, adding useful mass for damping without making the assembly overly bulky. Materials and lubricants preserve function from −20 °C to +40 °C, and the thermal path supports heat dissipation during sustained operation. The coils have a dielectric withstand rating of 340 Vdc, while the insulation system and insulation resistance support reliable electrical isolation. This operating range suits enclosed automation equipment when ambient conditions stay within the stated limit.
