Tb Woods TB-3J58 Sleeve Coupling Flange 3 Keyed Shaft

Product Description

The TB WOODS TB-3J58 is a finished bore sleeve coupling flange designed for close-coupled shaft connections in rotating equipment. It mounts directly to a keyed shaft with a 5/8 inch bore diameter and tight bore tolerances of +0.0005 inch to +0.0015 inch, ensuring a precise fit. The flange hub is machined from carbon steel and rated to a maximum speed of 9,200 RPM. A 4-way flexing action built into the sleeve insert absorbs shock, vibration, misalignment, and end float, protecting connected equipment from load spikes. Machinists, millwrights, and mechanical contractors install these flanges as part of a matched sleeve coupling assembly.

This coupling flange is suited for use in compressors, conveyors, motors, and pumps across industrial and commercial applications. It handles both angular and parallel misalignment, making it appropriate for drive trains where exact shaft alignment is difficult to maintain. The outside diameter measures 2-1/16 inches with a 1-1/2 inch hub diameter. Two set screws are included — one positioned over the keyseat and one at 90 degrees — securing the flange to the keyed shaft without additional fasteners. The part uses inch measurement standards and is manufactured in the USA.

Key Features

• Finished bore design mounts directly to 5/8 inch keyed shafts with close tolerances
• 4-way flexing sleeve action absorbs shock, vibration, angular misalignment, and parallel misalignment
• Carbon steel hub construction rated to 9,200 RPM maximum speed
• Chemical resistant and oil resistant for demanding industrial environments
• Includes two set screws: one over keyseat and one at 90 degrees for positive shaft retention
• Screw thread size 1/4 inch-20 for standard tooling compatibility

Compatibility

Designed as an OEM-style replacement or new-installation flange for coupling size 3 sleeve coupling assemblies using inch-standard keyed shafts on compressors, conveyors, motors, and pumps.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. Disconnect and lock out all power to the drive system before mounting or removing coupling components. Verify shaft keyway dimensions match the 1/16 inch keyway width and 1/8 inch keyway depth before pressing the flange onto the shaft. Pair this flange with the matching sleeve insert and opposite flange half to complete the coupling assembly; do not operate the coupling without the full matched set properly seated.

Technical Specifications

• Coupling Size: 3
• Bore Diameter: 5/8 inches
• Bore Tolerance: +0.0005 inches / +0.0015 inches
• Outside Diameter: 2-1/16 inches
• Hub Diameter: 1-1/2 inches
• Hub Body Length: 13/32 inches
• Length Through Bore: 51/64 inches
• Keyway Width: 1/16 inches
• Keyway Depth: 1/8 inches
• Maximum Speed: 9,200 RPM
• Hub Material: Carbon Steel
• Shaft Type: Keyed
• Misalignment Types: Angular; Parallel
• Included Hardware: 2 Set Screws (1/4 inch-20)
• Weight: 0.3 pounds
• Country of Origin: USA (subject to change)

Standard Information

• Brand: TB WOODS
• Manufacturer Part Number: TB-3J58