The TB Woods 3JES Insert is a high-performance EPDM split sleeve insert engineered specifically for size 3 Sure-Flex Plus couplers. As a veteran-grade component, this sleeve utilizes a split-to-the-core design that allows for rapid installation and replacement without disturbing the driver or driven equipment hubs. This Sure-Flex Plus 3JES sleeve is molded from a proprietary EPDM rubber compound, providing 30% higher torque capacity compared to standard competitive offerings, while maintaining a mechanical power transmission rating of 78 in-lbs of torque. Designed to handle the rigors of industrial HVACR environments, it offers a broad operating temperature range of -30°F to 275°F and a maximum speed of 9,200 RPM. This elastomeric coupling insert excels at vibration dampening and protecting sensitive equipment by absorbing 4-way flexing action—including angular misalignment up to 1°, parallel misalignment up to 0.010 inches, and significant end float. Key Benefits: Split Design for Fast Service: The split configuration allows for "drop-in" replacement, eliminating the need to disconnect shafts or move heavy motors during flexible coupling maintenance. Enhanced Torque Capacity: The Sure-Flex Plus material technology provides 3x longer life and carries 30% more torque than legacy models, often allowing for the use of smaller, more cost-effective coupling sizes. Shock & Vibration Isolation: Naturally dampens torsional oscillations and absorbs heavy shock loads to prevent premature bearing failure in pumps and compressors. Zero Lubrication Required: Durable EPDM material provides 100% maintenance-free operation with high resistance to moisture and common industrial chemicals. Common Questions: Can I use an EPDM insert in oily environments? EPDM is excellent for heat and water resistance but is not recommended for applications involving constant oil or petroleum exposure; choose Neoprene inserts for those specific conditions. Which flanges are compatible with the 3JES? This sleeve is fully interchangeable with all standard size 3 TB Woods Sure-Flex Plus flanges, including E, S, and J types. How much wind-up does this sleeve allow? Under full rated torque, the EPDM material provides approximately 21° of torsional wind-up, offering the high flexibility needed for high-vibration machinery. 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.
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