TB Woods 8JES Insert

The TB Woods 8JES is a single-piece EPDM split sleeve insert designed specifically for Sure-Flex Plus size 8 couplings. Engineered for high-torque applications requiring excellent torsional flexibility, this EPDM (Ethylene Propylene Diene Monomer) elastomer provides superior resistance to moisture, ozone, and temperature extremes. The split sleeve design allows for rapid installation and replacement without disturbing the hubs or realignment of the connected equipment, significantly reducing downtime during maintenance cycles. This Sure-Flex Plus J-Series insert provides 4-way flexing action to absorb parallel misalignment, angular misalignment, and end float while cushioning shock loads. Ideal for centrifugal pumps, fans, and compressors, the 8JES ensures torsional vibration dampening and quiet operation. Its 7° wind-up capability protects drivetrain components from peak torque spikes, maintaining reliable power transmission in demanding HVACR and industrial environments. This elastomeric coupling sleeve is the industry standard for flexible shaft couplings where chemical resistance and long-term durability are critical.

• High Torsional Flexibility: Absorbs shock and vibration to protect motors and driven equipment bearings.
• Split Sleeve Geometry: Facilitates easy coupling replacement without the need to disconnect the motor or pump hubs.
• EPDM Material Construction: Offers excellent resistance to environmental degradation and operates efficiently in a wide temperature range.
• High Torque Capacity: The Sure-Flex Plus 8JES is rated for higher torque loads than standard EPDM sleeves, allowing for potential downsizing of coupling assemblies.
• No Lubrication Required: Eliminates the need for ongoing maintenance and prevents grease-related contamination in sensitive areas.

What is the maximum torque rating for the TB Woods 8JES?
The size 8 EPDM sleeve is rated for a continuous torque of approximately 1,135 in-lbs, though always verify your specific service factor and application requirements before installation.

Can I use an 8JES insert in an application exposed to oil?
No, EPDM is not oil-resistant. For environments where oil or petroleum products are present, a neoprene (N) or Hytrel (H) sleeve should be used instead of the 8JES EPDM insert.

Does the 8JES sleeve require specific hubs?
The 8JES is compatible with standard Sure-Flex Plus hubs including Type S, C, and SC, ensuring a precise fit for existing size 8 coupling configurations.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.