Tb Wood'S 9S118 Sure-Flex Sleeve Coupling Flange 9S Bore 1-1/8 in
Cast-iron flange for 9S Sure-Flex sleeve couplings, 1-1/8 in bore, rated 3,750 RPM and 2,340 in-lb torque
- Designed for compressors, conveyors, motors and pumps
- Handles up to 2,340 in-lb maximum torque
- Operates at speeds up to 3,750 RPM
- Cast-iron hub resists wear in heavy-duty use
- Precision bore tolerance of +0.0005 in to +0.0015 in
Coupling Flange for 9S Size
This Tb Wood'S 9S118 Sure-Flex sleeve coupling flange fits a 1-1/8 inch round keyed bore. The cast iron hub measures 3 5/8 inches in diameter with an overall outside diameter of 6 11/32 inches. It is rated for a maximum speed of 3,750 RPM and a maximum torque of 2,340 in-lb. The hub body length is 25/32 inches and the length through bore is 2 13/32 inches.
Check Shaft Diameter and Speed Before Ordering
Verify that the driven shaft measures exactly 1-1/8 inches to match the bore diameter with its tolerance of +.0005 in / +.0015 in. Confirm the keyway dimensions suit a standard round keyed bore type. Ensure the application does not exceed 3,750 RPM or 2,340 in-lb of torque. This flange uses an inch measurement system and does not accept a bushing.
Suits Compressors, Conveyors, Motors and Pumps
This coupling flange is designed for power transmission in compressors, conveyors, motors and pumps. It is not for applications requiring a tapered bushing connection or metric shaft sizes. Builders needing a different bore diameter or a hub material other than cast iron should look at other models. The fixed 9S coupling size limits interchangeability with other series.
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 comes with the 9S118 Sure-Flex flange and what must I source separately?
The package contains the cast-iron flange hub with a 1-1/8 in round keyed bore. The matching flexible sleeve, the second flange hub and any shaft keys or set screws are sold separately.
How do I decide which bore size to order for my 1-1/8 in shaft?
Choose the 9S118 listing because its bore diameter is machined to 1-1/8 in with a tolerance of +.0005 in to +.0015 in, giving a proper interference fit on a standard shaft of that size.
What does the 3,750 RPM rating mean when the flange is mounted on a pump?
It is the maximum safe rotational speed for the complete coupling assembly; running the pump shaft faster than 3,750 RPM risks sleeve fatigue and flange imbalance.
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