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Carbon steel coupling flange with 3/4 inch bore and keyway

Tb Wood'S

Tb Wood'S 5J34 Sure-Flex Sleeve Coupling Flange 5J 3/4 in

SKU CH-405W-PXTY8

Connects shafts in compressors, conveyors, motors and pumps with a 3/4 inch bore and 312 in-lb torque rating

  • TypeCouplings, Collars & Adapters
  • Handles 312 in-lb torque for reliable power transfer
  • Runs up to 7,600 RPM in demanding applications
  • Carbon steel hub resists wear in tough environments
  • 3/4 in bore with tight tolerance fits standard shafts
  • 3-1/4 in outside diameter suits compact machinery layouts

Sure-Flex Sleeve Coupling Flange 5J

The Tb Wood'S 5J34 is a flange hub designed for power transmission systems using size 5 couplings. It fits a 3/4 inch round keyed bore with a bore tolerance of + 0.0005 in / + 0.0015 in. The carbon steel hub measures 1 7/8 inches in diameter and 29/64 inches in body length. It serves compressors, conveyors, motors and pumps.

Replaces worn or undersized flanges

This flange upgrades assemblies that exceed the 312 in-lb torque limit or the 7,600 RPM speed rating of smaller couplings. The jump is worth it when the driven equipment demands the full 3 1/4 inch outside diameter for alignment stability. It is not for installations requiring a bushed hub or a different coupling size.

Sustained load behaviour

Under continuous operation the carbon steel hub resists deformation up to the rated 312 in-lb torque. The keyed bore maintains positional accuracy within the stated tolerance at speeds up to 7,600 RPM. The 1 3/64 inch length through bore distributes shear stress across the hub body during extended duty cycles.

Highlights

  • Handles 312 in-lb torque for reliable power transfer
  • Runs up to 7,600 RPM in demanding applications
  • Carbon steel hub resists wear in tough environments
  • 3/4 in bore with tight tolerance fits standard shafts
  • 3-1/4 in outside diameter suits compact machinery layouts

Specifications

TypeCouplings, Collars & Adapters

Questions about this item

What bore size and keyway fit does the 5J flange need on the shaft?

The flange has a 3/4 in round keyed bore with a tolerance of +0.0005 in to +0.0015 in.

How is the 5J flange mounted and what step is often missed?

Slide the flange onto the keyed shaft, align the key, then secure with a set screw; the step often missed is tightening the set screw to the recommended torque.

What wear item will need replacement later on this coupling?

The flexible sleeve element between the two flanges wears over time and must be replaced when vibration or backlash increases.

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