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Cast iron sleeve coupling flange with 1-1/8 inch keyed bore

Tb Wood'S

Tb Wood'S 8S118 sleeve coupling flange 8S bore 1-1/8 in

SKU CH-FVPF-EHBT8

A cast-iron flange hub for 8S sleeve couplings with a 1-1/8 inch keyed bore rated to 4,500 RPM and 1,475 in-lb torque

  • Transmits high torque with 1,475 in-lb capacity
  • Handles 4,500 RPM for demanding power transmission
  • Precise bore tolerance of +0.0005 to +0.0015 in ensures secure fit
  • Cast iron hub provides durability for compressors and pumps
  • 1-1/8 in bore matches standard shaft sizes directly

Coupling flange for 1-1/8 in shafts

The Tb Wood'S 8S118 Sure-Flex sleeve coupling flange fits a 1 1/8 inch round keyed bore and is rated for 4,500 RPM maximum speed with 1,475 in-lb maximum torque. It serves compressors, conveyors, motors and pumps in inch-system power-transmission assemblies. The flange hub measures 3 1/4 inches in diameter and 3/4 inch in body length.

Cast iron hub with keyed bore tolerance

Cast iron construction provides rigidity for the flange hub while the bore tolerance of +0.0005 in to +0.0015 in ensures a precise interference fit on the shaft. The overall outside diameter is 5 29/64 inches and the length through bore is 2 3/32 inches. No bushing is required for this direct-mount design.

Maximum torque rating of 1,475 in-lb

This single torque limit determines whether the flange can handle the load in your application. Verify that the driven equipment never exceeds 1,475 in-lb at speeds up to 4,500 RPM before specifying this part.

How it compares

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

Price $46.99
Pricier than about 61% of the 693 comparable items (median $35.99).

Specifications

No published specifications for this item yet.

Questions about this item

What maximum speed and torque does the 8S coupling size handle?

The 8S size is rated for 4,500 RPM and 1,475 in-lb of torque.

What are the hub diameter and bore tolerance for the 1-1/8 in bore?

Hub diameter is 3 1/4 in; bore tolerance is +0.0005 in / +0.0015 in.

How is the flange secured to the shaft and what step is often missed?

It uses a round keyed bore with a setscrew over the keyway; forgetting the key is the common error.

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