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Black neoprene sleeve coupling insert with split one-piece design

Tb Wood'S

Tb Wood'S 4JNS Sure-Flex Sleeve Coupling Insert Neoprene

SKU CH-JQ7W-9M14R

Neoprene sleeve coupling insert for size 4 couplings handles 156 in-lb torque at 7,600 RPM with 1-degree angular misalignment

  • Handles 156 in-lb torque for reliable power transfer
  • Runs up to 7,600 RPM in high-speed drives
  • Absorbs 1° angular and 0.01 in parallel misalignment
  • Neoprene insert resists heat to 200°F in tough environments
  • One-piece split design simplifies installation and maintenance

Sleeve Coupling Insert Neoprene

The Tb Wood'S 4JNS Sure-Flex sleeve coupling insert is a neoprene component for power transmission systems. It connects driving and driven shafts while absorbing vibration and accommodating misalignment. Suitable for maintenance engineers and original-equipment assemblers specifying replacement elastomers.

Fits coupling size 4 with new 1-piece split

The insert sits inside a matching Sure-Flex sleeve coupling hub pair, which must be purchased separately. Its split design allows installation or removal without moving connected equipment such as motors or gearboxes. This frees up maintenance time on blowers, compressors, conveyors, mixers and pumps.

Handles 156 in-lb torque at 7,600 RPM maximum

At 100 RPM the insert transmits 0.25 hp with a torsional stiffness of 458 in-lb/rad. It tolerates angular misalignment of 1 degree and parallel offset of .01 in. Continuous operation is rated to 200 degrees F, so high-temperature or extreme-speed applications beyond these limits are not supported.

Highlights

  • Handles 156 in-lb torque for reliable power transfer
  • Runs up to 7,600 RPM in high-speed drives
  • Absorbs 1° angular and 0.01 in parallel misalignment
  • Neoprene insert resists heat to 200°F in tough environments
  • One-piece split design simplifies installation and maintenance

Specifications

No published specifications for this item yet.

Questions about this item

How much torque can the 4JNS sleeve coupling insert transmit before it reaches its limit?

The insert is rated for a maximum torque of 156 in-lb, which is the primary limit under sustained load.

What is the maximum operating temperature for the neoprene insert during continuous operation?

The neoprene material is rated for a maximum operating temperature of 200 degrees F.

Which coupling hubs are compatible with this size 4 insert?

This insert fits Sure-Flex coupling hubs designated for size 4, with an outside diameter of 2 5/16 in and a width of 1 1/4 in.

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