Tb Wood'S 6SCH118 Sure-Flex Coupling Spacer Hub, Bore 1-1/8 in
Connects shafts in compressors, conveyors, motors and pumps with a 1-1/8 in bore spacer hub rated to 6,000 RPM and 585 in-lb torque
- Rated for 6,000 RPM continuous operation
- Handles up to 585 in-lb torque loads
- Precision bore tolerance +.0005/+.0015 inches
- Cast iron construction resists wear in harsh environments
- Spacer hub design fits compressors, conveyors, motors, pumps
Coupling Spacer Hub for Size 6
The Tb Wood'S 6SCH118 Sure-Flex spacer hub fits coupling size 6 and accepts a round keyed bore of 1-1/8 in. It connects compressors, conveyors, motors or pumps in inch-system power-transmission assemblies. The cast-iron hub carries a bore tolerance of +0.0005 in to +0.0015 in for precise shaft alignment.
Thermal Noise Power in Normal Use
The hub transmits up to 585 in-lb of torque at speeds up to 6,000 RPM without generating significant heat or audible noise. Cast-iron construction dissipates mechanical losses through the hub body during continuous operation. No external lubrication or cooling is required for the spacer hub itself.
Replaces Worn Spacer Hubs
This part replaces a damaged or worn Sure-Flex spacer hub of the same coupling size and bore diameter. The upgrade is worth it when vibration, misalignment or keyway wear degrades power transmission. Buyers needing a different bore size or coupling rating cannot use this hub.
How it compares
Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.
- Price $43.99
- Pricier than about 59% of the 693 comparable items (median $35.99).
Specifications
No published specifications for this item yet.
Questions about this item
How is the 6SCH118 spacer hub mounted on a 1-1/8 in shaft, and what step is often missed?
Press the hub onto the shaft within the +0.0005 in / +0.0015 in bore tolerance, then secure the key in the round keyed bore; the step often missed is verifying the key seats fully before tightening the coupling sleeve.
What maintenance or replacement will the cast iron hub need over time?
Inspect the keyway and bore for fretting or elongation during scheduled downtime; replace the hub if the key fit exceeds the original +0.0005 in / +0.0015 in tolerance or if cracks appear on the 2 1/2 in hub diameter.
At 6,000 RPM sustained operation, which limit appears first on the 6SCH118?
The 585 in-lb maximum torque rating is the limiting factor; continuous operation at 6,000 RPM must not transmit torque above this value or the spacer hub can fail.
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