Tb Woods TB-3J Sleeve Coupling Insert Size 3 Epdm

Product Description

The TB WOODS TB-3J is a one-piece solid EPDM sleeve coupling insert designed to join two compatible coupling flanges and complete a sleeve coupling system. Rated at 78 in-lb of torque and capable of reaching 9,200 RPM, this size 3 insert provides reliable power transmission in demanding mechanical drive applications. Its 4-way flexing action absorbs shock, vibration, misalignment, and end float, protecting connected equipment from dynamic loads. The insert accommodates both angular misalignment up to 1 degree and parallel misalignment up to 0.01 inches. Licensed mechanics and millwrights working on light industrial drive systems are the typical installers.

This insert is suited for use in blowers, compressors, conveyors, mixers, motors, and pumps across residential and light commercial mechanical systems. The EPDM construction offers chemical and oil resistance, making it appropriate for environments where fluid exposure is a concern. Its operating temperature range of -30 degrees F to 275 degrees F supports use in both cold-storage and elevated-temperature process environments. At 0.12 hp capacity at 100 RPM and up to 4.5 hp at 3,600 RPM, it fits a broad range of low-to-mid horsepower drive pairings.

Key Features

• One-piece solid EPDM construction for durability and consistent flex performance
• 4-way flexing action absorbs shock, vibration, angular misalignment, and end float
• Rated to 9,200 RPM maximum speed with 78 in-lb torque capacity
• Chemical resistant and oil resistant material extends service life in harsh environments
• Wide operating temperature range: -30 degrees F to 275 degrees F
• Torsional stiffness of 229 in-lb per radian for predictable drive behavior

Compatibility

Designed as an OEM-style replacement insert for size 3 sleeve coupling systems requiring a one-piece solid EPDM insert. Compatible coupling flanges must match the size 3 designation; consult the coupling flange manufacturer specifications before installation.

Installation Notes

Installation is performed by licensed millwrights or mechanical technicians familiar with flexible coupling systems. De-energize and lock out the drive motor before beginning any coupling service work. Ensure both mating flanges are cleaned and free of debris before seating the insert. Do not exceed the rated torque or maximum speed when specifying this insert for a drive application.

Technical Specifications

• Coupling Size: 3
• Rated Torque: 78 in-lb
• Maximum Speed: 9,200 RPM
• Torsional Stiffness: 229 in-lb/rad
• Horsepower at 100 RPM: 0.12 hp
• Horsepower at 1,800 RPM: 2.2 hp
• Horsepower at 3,600 RPM: 4.5 hp
• Insert Material: EPDM
• Insert Construction: One Piece - Solid
• Insert Width: 1 inch
• Outside Diameter: 1.875 inches
• Parallel Misalignment Capacity: 0.01 inches
• Angular Misalignment Capacity: 1 degree
• Minimum Operating Temperature: -30 degrees F
• Maximum Operating Temperature: 275 degrees F
• Resistance Properties: Chemical Resistant, Oil Resistant
• Weight: 0.06 pounds
• Country of Origin: USA (subject to change)

Standard Information

• Brand: TB WOODS
• Manufacturer Part Number: TB-3J