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Black rubber cylindrical sleeve coupling insert, 1 7/8 inch diameter, 1 inch wide

Tb Wood'S

Tb Wood'S 3J Sleeve Coupling Insert 9,200 RPM 78 in-lb

SKU CH-997B-6K1PB

A new sleeve coupling insert rated for 9,200 RPM and 78 in-lb torque connects shafts in blowers, compressors, conveyors, mixers, motors and pumps

  • Handles 9,200 RPM for high-speed drives
  • Transmits 78 in-lb torque to power equipment
  • EPDM insert resists heat up to 275°F
  • Allows 1° angular and .01 in parallel misalignment
  • Delivers .12 hp at 100 RPM for blowers and pumps

Coupling Insert for Size 3 Applications

The TB Wood's 3J sleeve coupling insert connects shafts in Size 3 couplings for power transmission systems. It is built for blowers, compressors, conveyors, mixers, motors and pumps. The one-piece solid EPDM construction handles a maximum speed of 9,200 RPM and a maximum torque of 78 in-lb. Angular misalignment capacity reaches 1 degree with parallel offset limited to 0.01 in.

Suited for Light-Duty Industrial Drives

This insert fits maintenance teams and OEMs specifying replacement elements for existing Size 3 sleeve couplings. The 229 in-lb/rad torsional stiffness and 275 degrees F temperature limit suit standard industrial environments. Buyers needing higher torque capacity, greater misalignment allowance or a different coupling size should select an alternative insert.

Capacity and Operating Limits

At 100 RPM the insert transmits 0.12 hp, providing a baseline for sizing calculations. The 78 in-lb torque ceiling and 9,200 RPM speed ceiling define the hard limits for continuous operation. Exceeding either value or the stated misalignment ranges will reduce service life and risk premature failure.

Highlights

  • Handles 9,200 RPM for high-speed drives
  • Transmits 78 in-lb torque to power equipment
  • EPDM insert resists heat up to 275°F
  • Allows 1° angular and .01 in parallel misalignment
  • Delivers .12 hp at 100 RPM for blowers and pumps

Specifications

No published specifications for this item yet.

Questions about this item

What coupling size and shaft diameter do I need to match this 3J sleeve insert?

The insert is built for coupling size 3 and fits the corresponding Tb Wood's 3J sleeve hubs; the hub bore must match your shaft diameter to transmit up to 78 in-lb.

Will this EPDM insert handle the same 9,200 RPM and 275 °F limits as my existing metal hubs?

Yes, the insert is rated for 9,200 RPM maximum speed and a 275 °F maximum operating temperature, matching the hub specifications for those limits.

How can I verify the insert is installed correctly and transmitting torque smoothly?

At 100 RPM the assembly should deliver about 0.12 hp with only 1 degree of angular misalignment and 0.01 in parallel offset; torsional stiffness of 229 in-lb/rad confirms proper engagement.

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