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Cast iron spacer hub with 7/8 inch round keyed bore

Tb Wood'S

Tb Wood'S 5SCH78 Sure-Flex Sleeve Coupling Spacer Hub 7/8 in bore

SKU CH-K9CH-HXMW3

A cast-iron spacer hub with a 7/8 in keyed bore transmits up to 312 in-lb at 7,600 RPM for compressors, conveyors, motors and pumps

  • Spacer hub aligns shafts in compressors, conveyors, motors and pumps
  • Cast-iron construction withstands 312 in-lb torque at 7,600 RPM
  • 7/8 in round keyed bore with +.0005/+.0015 in tolerance ensures precise fit
  • 1 3/32 in length through bore provides reliable engagement
  • 2 in outside diameter suits Coupling Size 5 applications

Coupling Spacer Hub 7/8 in Bore

This spacer hub is a component in the Sure-Flex sleeve coupling range. It suits drives on compressors, conveyors, motors and pumps. The hub accepts a 7/8 inch round keyed bore. It is built from cast iron for industrial power transmission.

Fits Size 5 Coupling Hubs

The hub matches coupling size 5 and has a 2 inch outside diameter. It bolts between two sleeve flanges to span a gap between shafts. The hub length through the bore is 1 3/32 inches. No separate bushing is required for installation.

Rated 7 600 RPM and 312 in-lb Torque

The hub transmits up to 312 in-lb at speeds up to 7 600 RPM. Bore tolerance is held to +0.0005 / +0.0015 inches for a consistent fit. Cast iron construction handles continuous cyclic loading. Not suited for applications exceeding the rated speed or torque.

Highlights

  • Spacer hub aligns shafts in compressors, conveyors, motors and pumps
  • Cast-iron construction withstands 312 in-lb torque at 7,600 RPM
  • 7/8 in round keyed bore with +.0005/+.0015 in tolerance ensures precise fit
  • 1 3/32 in length through bore provides reliable engagement
  • 2 in outside diameter suits Coupling Size 5 applications

Specifications

No published specifications for this item yet.

Questions about this item

What is the maximum speed rating for this coupling spacer hub?

The hub is rated for a maximum speed of 7,600 RPM, which is the primary limit during sustained operation.

Does the cast iron hub generate noticeable heat or noise during continuous all-day operation?

Cast iron construction runs cool and quiet under normal loads; no active cooling or noise concerns are documented for this spacer hub.

What shaft diameter and keyway are required to mount this 7/8 inch bore spacer hub?

The hub fits a 7/8 inch round shaft with a standard keyway and a bore tolerance of +0.0005 in / +0.0015 in.

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