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Black rubber sleeve coupling insert with smooth cylindrical form factor

Tb Wood'S

Tb Wood'S 7J Sure-Flex Coupling Insert 7JE EPDM Rubber

SKU CH-7QS8-6D4W5

EPDM rubber insert for 7J Sure-Flex sleeve couplings, rated 940 in-lb torque and 5,250 RPM

  • EPDM rubber withstands 275 °F operating temperatures
  • 940 in-lb torque capacity handles demanding power transmission
  • 5,250 RPM maximum speed suits high-speed machinery
  • 1° angular and 0.02 in parallel misalignment tolerance eases installation
  • 5 hp at 100 RPM delivers reliable performance for blowers, compressors, conveyors, mixers, motors and pumps

Application fit

This coupling insert fits Size 7 Sure-Flex sleeves and suits blowers, compressors, conveyors, mixers, motors and pumps. It handles up to 5,250 RPM and 940 in-lb of torque. Buyers who need a different coupling size or a higher temperature rating cannot use this part.

Material difference

The one-piece solid EPDM rubber construction delivers 1.5 hp at 100 RPM and torsional stiffness of 2,769 in-lb/rad. EPDM resists heat up to 275 degrees F. Buyers who require an oil-resistant insert or a split design for in-place replacement must choose another model.

Installation reality

The insert measures 4 11/32 in outside diameter and 2 3/16 in width with inch-system tolerances. It allows 1 degree of angular misalignment and 0.02 in of parallel offset. California Proposition 65 warnings apply for cancer and reproductive harm.

Highlights

  • EPDM rubber withstands 275 °F operating temperatures
  • 940 in-lb torque capacity handles demanding power transmission
  • 5,250 RPM maximum speed suits high-speed machinery
  • 1° angular and 0.02 in parallel misalignment tolerance eases installation
  • 5 hp at 100 RPM delivers reliable performance for blowers, compressors, conveyors, mixers, motors and pumps

Specifications

No published specifications for this item yet.

Questions about this item

How often will the EPDM rubber insert need replacement under normal use?

The insert is a wear component; replacement interval depends on load, speed, alignment and ambient temperature, so inspect it during scheduled shutdowns.

What is the first limit reached when running the coupling continuously at high load?

Maximum torque is 940 in-lb and maximum speed is 5,250 RPM; exceeding either will cause premature failure.

How much heat does the coupling generate when operating all day at rated speed?

The insert is rated to 275 °F maximum operating temperature; actual heat rise varies with torque, misalignment and ventilation.

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