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Grey cast-iron flange hub, 2-inch keyed bore, six bolt holes around the rim

Tb Wood'S

Tb Wood'S 9S2 Sure-Flex Sleeve Coupling Flange 9S Bore 2 in

SKU CH-5D49-MDQ9E

Connects shafts in compressors, conveyors, motors and pumps with a 2 in bore and 3,750 RPM rating

  • Rated for 3,750 RPM continuous operation
  • Handles up to 2,340 in-lb maximum torque
  • 2 in round keyed bore with precise tolerance
  • Cast iron flange hub resists wear in heavy use
  • Fits compressors, conveyors, motors and pumps

Coupling Flange for 2 in Shafts

This Tb Wood'S 9S2 Sure-Flex sleeve coupling flange fits a 2 in round keyed bore with a tolerance of + .0005 in / + .0015 in. The cast iron flange hub has a 3 5/8 in hub diameter and a 25/32 in body length. It is built for power transmission on compressors, conveyors, motors and pumps.

Mounts Directly on Keyed Shafts

The flange installs without a separate bushing, reducing part count and assembly time. Its 6 11/32 in outside diameter and 2 13/32 in length through bore define the space it occupies between connected equipment. The hub design transmits torque while accommodating the listed misalignment capacity of the Sure-Flex system.

Replaces Worn or Undersized Flanges

Upgrade when an existing flange shows keyway wear, corrosion or insufficient torque capacity for the driven load. The 2, 340 in-lb rating and 3, 750 RPM limit mark the envelope for this size; applications exceeding those values require a larger coupling size. Not suited for shafts smaller than 2 in or for non-keyed connections.

Highlights

  • Rated for 3,750 RPM continuous operation
  • Handles up to 2,340 in-lb maximum torque
  • 2 in round keyed bore with precise tolerance
  • Cast iron flange hub resists wear in heavy use
  • Fits compressors, conveyors, motors and pumps

Specifications

No published specifications for this item yet.

Questions about this item

What is the maximum continuous speed before the 9S flange reaches its 3,750 RPM limit?

The coupling flange is rated for a maximum speed of 3,750 RPM; sustained operation above this limit is not recommended.

How much heat or vibration does the cast-iron flange generate when run continuously at 3,750 RPM?

Cast iron construction dampens vibration, and with no moving friction surfaces the flange itself adds negligible heat during all-day operation.

Which shaft diameter and keyway must the mating shaft already have to fit the 2 in bore with +0.0005/+0.0015 in tolerance?

A 2 in diameter shaft with a standard keyway matching the round keyed bore tolerance of +0.0005 to +0.0015 in is required.

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