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Cast iron Sure-Flex coupling flange, 1-3/4 inch bore, keyed hub

Tb Wood'S

Tb Wood'S 9S134 Sure-Flex Flange 9S Bore 1-3/4 in

SKU CH-E74K-RX0ZV

Connects shafts on compressors, conveyors, motors or pumps with a 1-3/4 inch bore and 3,750 RPM rating

  • Handles 3,750 RPM for high-speed machinery
  • Transmits 2,340 in-lb torque in demanding drives
  • 1-3/4 in round keyed bore fits standard shafts
  • Cast iron hub resists wear in harsh environments
  • Suits compressors, conveyors, motors and pumps

Tb Wood'S 9S134 Flange For 1-3/4 Inch Shafts

This Sure-Flex sleeve coupling flange fits a 1 3/4 inch round keyed bore. It is designed for power transmission on compressors, conveyors, motors and pumps. The cast iron hub provides rigidity for industrial drivelines. Buyers needing a different bore size or a clamp-style hub cannot use this part.

Replaces Worn 9S Flanges At 3 750 RPM Limit

The flange handles up to 2 340 in-lb of torque at a maximum speed of 3 750 RPM. Swap it when the existing flange shows keyway wear, cracking or excessive runout. The upgrade is worth it when vibration increases or the keyway tolerance exceeds the +0.0005 to +0.0015 inch range. Do not exceed the rated speed or torque values.

Bolt-On Hub With 2 13/32 Inch Bore Length

Installation requires aligning the flange hub on the shaft and securing the key in the round keyed bore. The 2 13/32 inch length through bore allows full shaft engagement. Common issues include incorrect key fit, exceeding the bore tolerance or mating with a non-9S sleeve. Verify shaft diameter before mounting.

How it compares

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

Price $72.99
Pricier than about 72% of the 693 comparable items (median $35.99).

Specifications

No published specifications for this item yet.

Questions about this item

What shaft diameter does the 1-3/4 in bore of the 9S134 flange accept?

The round keyed bore is machined to 1-3/4 in with a tolerance of +0.0005 in to +0.0015 in, so it fits a shaft of that nominal size.

How is the 9S134 flange secured to the shaft, and what step is often missed?

It uses a standard keyway; the step often missed is installing the key fully before tightening the set screw over the keyway.

What wear item will need replacement on the 9S134 coupling over time?

The Sure-Flex elastomer sleeve that connects the two flanges is the sacrificial wear item and will require periodic replacement.

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