TB Woods 7JE Insert

The TB Woods 7JE Insert is an industrial-grade, single-piece EPDM rubber coupling sleeve engineered for use with Sure-Flex Plus size 7 flange assemblies. Designed for reliability in demanding pump and motor applications, this solid elastomeric sleeve features a 940 in-lb torque rating and a 5,250 max RPM. The EPDM material provides exceptional resistance to environmental stressors including moisture and chemicals, while maintaining a wide operating temperature range from -30°F to +275°F. By utilizing a 4-way flexing action, this flexible coupling insert successfully absorbs parallel misalignment up to 0.020 inches and angular misalignment up to 1 degree, minimizing bearing loads and protecting downstream equipment from torsional shock. This Sure-Flex Plus 7JE insert is a direct drop-in replacement that eliminates the need for lubrication, significantly reducing routine maintenance requirements for contractors and facility engineers overseeing high-performance air handling and fluid power systems.

• High Torque Capacity: Sure-Flex Plus design provides a 30% increase in torque rating compared to standard 7J components.
• Misalignment Compensation: Absorbs 4-way movement, including parallel, angular, and end-float, to prevent shaft and bearing wear.
• Torsional Flexibility: EPDM rubber provides approximately 21° of torsional wind-up at rated loads to dampen system vibrations.
• Low Maintenance: Solid, one-piece construction requires no grease or lubrication for the life of the part.
• Universal Compatibility: Fully interchangeable with existing size 7 Sure-Flex flanges for easy retrofitting.

Is the 7JE insert interchangeable with older 7J sleeves?
Yes, the 7JE (Sure-Flex Plus) is a direct, drop-in technical upgrade for the standard 7J sleeve and is fully backward compatible with all size 7 Sure-Flex flanges.

What is the difference between a JE and a JES sleeve?
The 7JE is a one-piece solid EPDM sleeve, whereas the 7JES is a split version. Contractors typically select the solid JE for new assemblies where flanges can be moved back, while the split JES is used for rapid maintenance without disturbing the hubs.

Can this EPDM insert be used in oil-heavy environments?
EPDM is ideal for general-purpose applications and chemical resistance, but it is not recommended for environments with high petroleum or oil exposure. For those conditions, a Neoprene (N) or Hytrel (H) sleeve should be specified.

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.