We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Cast iron sleeve coupling flange with 1-1/2 inch round keyed bore

Tb Wood'S

Tb Wood'S 7S112 Sure-Flex Sleeve Coupling Flange 7S Bore 1-1/2 in

SKU CH-A39H-09R8G

Connects shafts in compressors, conveyors, motors and pumps with a 1-1/2 in bore and 940 in-lb torque rating

  • Handles 940 in-lb torque for heavy-duty power transmission
  • Runs at 5,250 RPM maximum speed for high-speed machinery
  • 1-1/2 inch bore with +.0005/+.0015 tolerance ensures precise shaft fit
  • Cast iron hub delivers durability in compressors, conveyors, motors, pumps
  • 4-5/8 inch outside diameter fits standard coupling size 7 installations

Sure-Flex Flange for 1-1/2 in Bore

This cast-iron flange hub fits a 1 1/2 inch round keyed bore with a tolerance of +0.0005 in to +0.0015 in. It belongs to the Sure-Flex coupling size 7 series and measures 4 5/8 in outside diameter. The hub body length is 1 in and the length through bore is 1 27/32 in. It is designed for compressors, conveyors, motors and pumps.

Rated for 5,250 RPM and 940 in-lb Torque

The coupling handles a maximum speed of 5,250 RPM and a maximum torque of 940 in-lb under sustained operation. Cast-iron construction provides the rigidity needed for continuous power transmission in industrial machinery. Performance remains consistent within the stated speed and torque limits.

Keyed Bore Installation with Standard Shaft Fit

The round keyed bore accepts a standard keyway for positive drive engagement. Bore tolerance of +0.0005 in to +0.0015 in ensures a proper interference or clearance fit on nominal 1 1/2 in shafts. Misalignment beyond coupling specifications or incorrect key fit are typical installation issues.

Highlights

  • Handles 940 in-lb torque for heavy-duty power transmission
  • Runs at 5,250 RPM maximum speed for high-speed machinery
  • 1-1/2 inch bore with +.0005/+.0015 tolerance ensures precise shaft fit
  • Cast iron hub delivers durability in compressors, conveyors, motors, pumps
  • 4-5/8 inch outside diameter fits standard coupling size 7 installations

Specifications

No published specifications for this item yet.

Questions about this item

How much heat or noise does the 7S coupling flange generate when running continuously at 5,250 RPM?

The flange itself has no moving parts that produce heat or noise; any temperature rise or sound comes from the driven equipment and the flexible sleeve, not from the cast-iron hub.

What shaft and keyway must I already have to mount this 1-1/2 in bore flange?

You need a 1-1/2 inch diameter shaft with a standard keyway that matches the bore tolerance of +0.0005 to +0.0015 inch.

Will this 7S flange work with an older Sure-Flex sleeve and hub set I already own?

Yes, provided the existing sleeve and mating hub are also size 7S; the coupling size must match exactly for the parts to engage correctly.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.