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Cast iron flange coupling hub with 5/8 inch bore and keyway

Tb Wood'S

Tb Wood'S 6J58 Sure-Flex Sleeve Coupling Flange 5/8 in Bore

SKU CH-BG7B-BRHPC

A cast-iron flange hub with a 5/8 in round keyed bore fits Sure-Flex sleeve couplings rated to 585 in-lb and 6,000 RPM

  • Fits 5/8 in shafts with tight tolerance
  • Handles up to 585 in-lb torque reliably
  • Cast iron hub resists wear in tough use
  • Operates at speeds up to 6,000 RPM
  • Suits compressors, conveyors, motors and pumps

6J Sure-Flex Flange for 5/8 in Shafts

This cast-iron flange hub belongs to the 6J Sure-Flex coupling series and accepts a 5/8 inch round keyed bore. It connects compressors, conveyors, motors and pumps in inch-dimension power-transmission assemblies. The hub body length is 9/16 inch and the overall length through bore measures 1 5/16 inches.

Sustained Operation at 6,000 RPM

The coupling size 6 rating allows continuous running at 6,000 RPM while transmitting up to 585 in-lb of torque. Bore tolerance of +0.0005 in / +0.0015 in maintains concentric engagement so vibration stays low during extended duty cycles. No separate bushing is required for this flange hub design.

Cast-Iron Hub with 4 in Outside Diameter

The 4 inch outside diameter and 2 1/2 inch hub diameter provide a rigid mounting face that bolts directly to driven equipment. Cast iron construction resists shock loads common on reciprocating compressors and heavy conveyor starts. The keyed bore locks to the shaft without a bushing, simplifying alignment and reducing component count.

How it compares

Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.

Price $22.99
Cheaper than about 61% of the 693 comparable items (median $35.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does the 6J58 coupling flange generate noticeable noise or heat when running continuously at 6,000 RPM?

The Sure-Flex sleeve design absorbs vibration, so the flange itself runs quietly and does not produce significant heat at the rated 6,000 RPM limit.

What shaft and keyway must I already have to mount this 5/8 in bore flange?

You need a 5/8 in round shaft with a standard keyway; the bore tolerance is +0.0005 in / +0.0015 in for a secure fit.

Will this cast-iron 6J flange work with an older steel hub from a different brand?

It can mate with any Sure-Flex 6J sleeve, but mixing hub materials is not recommended because thermal expansion rates differ between cast iron and steel.

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