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Neoprene sleeve coupling insert, solid one-piece, 2 5/16 inch OD

Tb Wood'S

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

SKU CH-7J56-CX4FA

Neoprene sleeve coupling insert rated for 7,600 RPM and 156 in-lb torque

  • TypeCouplings, Collars & Adapters
  • Handles 7,600 RPM for high-speed drives
  • Transmits 156 in-lb torque for reliable power
  • Absorbs 1° angular misalignment to protect shafts
  • Neoprene insert withstands 200 °F operating heat
  • 25 hp at 100 RPM suits light-duty equipment

What this insert does

The Tb Wood'S 4JN Sure-Flex sleeve coupling insert is a neoprene component designed for power-transmission systems. It connects driving and driven shafts in equipment such as blowers, compressors, conveyors, mixers, motors and pumps. The one-piece solid construction handles angular misalignment up to 1 degree and parallel offset of 0.01 in.

Neoprene material benefits

The neoprene insert provides torsional stiffness of 458 in-lb/rad to damp vibration and absorb shock loads across the drivetrain. It operates at temperatures up to 200 degrees F and supports a maximum speed of 7,600 RPM. The material choice suits general industrial environments where oil resistance and flexibility are required.

Deciding specification

The insert is rated for a maximum torque of 156 in-lb and delivers 0.25 hp at 100 RPM. Select this part only when the application torque stays within that limit and the shaft arrangement matches the 2 5/16 in outside diameter and 1 1/4 in width. Buyers needing higher torque capacity or a different coupling size cannot use this insert.

Highlights

  • Handles 7,600 RPM for high-speed drives
  • Transmits 156 in-lb torque for reliable power
  • Absorbs 1° angular misalignment to protect shafts
  • Neoprene insert withstands 200 °F operating heat
  • 25 hp at 100 RPM suits light-duty equipment

Specifications

TypeCouplings, Collars & Adapters

Questions about this item

When will the neoprene sleeve insert need replacement?

The neoprene insert operates up to 200 °F; inspect it periodically for cracking or hardening caused by heat cycles and misalignment.

What limits continuous operation at 7,600 RPM?

The 7,600 RPM rating is the maximum speed; sustained running at this limit increases centrifugal stress and heat buildup in the neoprene.

How much heat and power loss occur during all-day running?

Torsional stiffness of 458 in-lb/rad means some energy becomes heat; at 100 RPM the insert transmits 0.25 hp while staying within the 200 °F limit.

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