TB Woods 5J-1 Coupler Flange

As a veteran HVACR technician, you know that drive reliability starts with the right TB Woods 5J-1 Coupler Flange. This Sure-Flex Plus size 5 flange is engineered from sintered carbon steel using a powdered metal process that ensures high dimensional accuracy and uniform material properties. Designed for close-coupled applications, the 5J-1 features a 1-inch finished bore with a standard 1/4" x 1/8" keyseat. Its bored-to-size configuration allows for a slip fit on standard shafts, while the precision-machined outside diameter enables fast alignment checks without specialized tools.

The TB Woods 5J1 flange is rated for a maximum speed of 7600 RPM and can handle a torque capacity up to 240 in-lbs when paired with the appropriate Sure-Flex Plus sleeve. This Type J coupling flange is specifically built to work with EPDM or Neoprene sleeves to provide a 4-way flexing action that dampens vibration and absorbs shaft misalignment. Whether you are servicing centrifugal pumps, fans, or compressors, this elastomeric coupling flange delivers a lubrication-free solution that reduces maintenance intervals and protects critical motor bearings from axial and parallel stress.

• Precision Bore: Features a 1-inch bore with 1/4" x 1/8" keyway and dual setscrews for a secure, slip-on shaft fit.
• High-Strength Construction: Sintered carbon steel provides the strength required for high-torque HVACR drive systems.
• Easy Alignment: Machined flange OD acts as a built-in reference for parallel and angular alignment using a straight edge.
• Interchangeable Design: Fully compatible with existing Sure-Flex Plus sleeves (EPDM or Neoprene) for quick field repairs.
• Maintenance-Free: Eliminates the need for greasing, reducing overall system downtime and operational costs.

Which sleeves are compatible with the 5J-1 flange?
This Size 5 Type J flange is designed for use with EPDM (JE/JES) and Neoprene (JN/JNS) sleeves. Do not use Hytrel sleeves with Type J flanges as they are not rated for the higher stiffness requirements of those inserts.

Does this flange include the setscrews?
Yes, the 5J-1 comes with two 5/16"-18 setscrews: one located directly over the keyway and the second at a 90-degree angle to ensure maximum grip on the shaft.

What is the maximum allowable misalignment for this coupling?
When properly installed with a Sure-Flex Plus sleeve, it can typically handle up to 1 degree of angular misalignment and a parallel offset of 0.015 inches, protecting your motor and driven equipment from catastrophic bearing failure.

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.