Tb Wood'S 3JN Sure-Flex Sleeve Coupling Insert, Neoprene
Neoprene sleeve coupling insert rated for 78 in-lb torque, 9,200 RPM, and 200 °F maximum temperature
- Product typeCouplings, Collars & Adapters
- Neoprene sleeve absorbs vibration in blowers and compressors
- Solid one-piece design handles 78 in-lb peak torque
- Rated for 9,200 RPM continuous operation
- Angular misalignment tolerance of 1 degree eases alignment
- Operates up to 200 °F in pump and mixer drives
Coupling Insert for Power Transmission
This neoprene sleeve coupling insert fits size 3 Sure-Flex couplings. It transmits torque between shafts in industrial machinery such as blowers, compressors, conveyors, mixers, motors and pumps. The one-piece solid construction handles a maximum torque of 78 in-lb at speeds up to 9,200 RPM. It operates in temperatures up to 200 degrees F.
Suited for Light-Duty Misalignment
The insert accommodates angular misalignment of 1 degree and parallel misalignment of .01 in. It delivers .12 hp at 100 RPM with a torsional stiffness of 229 in-lb/rad. Buyers needing higher torque capacity, greater speed ratings or larger shaft sizes should look at other coupling sizes. Applications requiring metallic or alternative elastomer materials are not served by this neoprene insert.
Capacity Limits at Size 3
The component comfortably handles the rated 78 in-lb torque and 9,200 RPM maximum speed within the 200 degree F temperature limit. It runs out of headroom when application torque exceeds the rated value, when shaft misalignment surpasses the stated angular or parallel limits, or when operating temperatures rise above the maximum. The 1 in width and 1 7/8 in outside diameter define the physical envelope.
How it compares
Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.
- Price $6.99
- Cheaper than about 93% of the 693 comparable items (median $35.99).
Specifications
| Product | |
|---|---|
| Product type | Couplings, Collars & Adapters |
Questions about this item
What shaft size does the 1 7/8 in outside diameter sleeve coupling insert fit?
The insert fits a size 3 coupling hub; the hub bore determines the shaft diameter it accepts.
Will the neoprene insert tolerate the 0.01 in parallel offset of my existing pump and motor shafts?
Yes, the insert is rated for 0.01 in parallel misalignment and 1 degree angular misalignment.
How can I confirm the 229 in-lb/rad torsional stiffness is correct after installation?
Measure twist under a known torque load; the angular deflection should match the rated stiffness value.
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