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Cast iron flange coupling hub with 1-1/4 inch keyed bore

Tb Wood'S

Tb Wood'S 7S114 Sure-Flex Sleeve Coupling Flange 7S Bore 1-1/4 in

SKU CH-XB7V-K2XJA

Connects shafts in compressors, conveyors, motors and pumps with a 1-1/4 in bore and 940 in-lb torque rating

  • Handles 940 in-lb torque for demanding drives
  • Runs up to 5,250 RPM for high-speed machinery
  • Cast-iron flange resists wear in tough environments
  • 1-1/4 in keyed bore fits standard shafts
  • Precise +.0005/+.0015 in tolerance ensures secure fit

Sure-Flex Flange for 1-1/4 in Shafts

The Tb Wood'S 7S114 Sure-Flex sleeve coupling flange fits a 1-1/4 inch round keyed bore. It connects shafts in compressors, conveyors, motors and pumps where reliable power transmission is required. The cast iron hub provides durability in industrial environments.

Suited for Coupling Size 7 Applications

This flange matches coupling size 7 and handles up to 5,250 RPM and 940 in-lb of torque. It is not intended for applications that exceed those speed or torque limits. Buyers needing a different bore diameter or a larger coupling size should select another model.

Cast Iron Hub with Standard Keyway Tolerance

The flange hub measures 2 13/16 inches in diameter and 1 27/32 inches long through the bore. Bore tolerance is +0.0005 in / +0.0015 in for a secure keyed fit. No bushing is used with this design, simplifying installation on compatible shafts.

Highlights

  • Handles 940 in-lb torque for demanding drives
  • Runs up to 5,250 RPM for high-speed machinery
  • Cast-iron flange resists wear in tough environments
  • 1-1/4 in keyed bore fits standard shafts
  • Precise +.0005/+.0015 in tolerance ensures secure fit

Specifications

No published specifications for this item yet.

Questions about this item

What shaft diameter does the 1-1/4 in bore of this 7S flange accept?

The bore diameter is 1-1/4 in with a tolerance of +.0005 in to +.0015 in, so the shaft must measure within that range for a proper keyed fit.

Will the 7S size flange run at the same 5,250 RPM limit if paired with an older Sure-Flex sleeve?

Yes, the coupling size 7 rating of 5,250 RPM and 940 in-lb torque applies to the complete assembly when the matching sleeve is installed correctly.

How do I confirm the flange is seated to the full 1-27/32 in length through bore after installation?

Measure the hub engagement against the shaft shoulder; the hub body length is 1 in and the total length through bore is 1-27/32 in, so the flange should bottom out at that depth.

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