Tb Woods TB-4J58 Sleeve Coupling Flange 4 Coupling Size

Product Description

The TB WOODS TB-4J58 is a finished bore sleeve coupling flange designed for close-coupled power transmission applications. It mounts directly to a keyed round bore shaft and joins to a matched sleeve insert to complete the coupling assembly. The flange features a 5/8-inch bore with tight tolerances of plus 0.0005 to plus 0.0015 inches, a 3/16-inch keyway width, and a 2.5-inch outside diameter. Rated to 7,600 RPM, it handles angular and parallel misalignment through a 4-way flexing action that also absorbs shock, vibration, and end float. Made from carbon steel, this flange is suited for demanding industrial drive systems.

This coupling flange fits into coupling size 4 and is used across a range of industrial and commercial applications including compressors, conveyors, motors, and pumps. The inch-dimensioned design accommodates standard keyed shaft configurations and is appropriate wherever a durable, close-coupled flange hub is required to transmit rotational power between a driver and driven component. Its chemical and oil resistance makes it viable in environments where fluid exposure is common.

Key Features

• Finished bore with bore diameter of 5/8 inch and tolerance of plus 0.0005 to plus 0.0015 inches for precise shaft fit
• 4-way flexing action absorbs shock, vibration, misalignment, and end float
• Handles both angular and parallel shaft misalignment
• Rated to 7,600 RPM maximum speed
• Carbon steel hub construction with chemical and oil resistance
• Includes two set screws: one over keyseat and one at 90 degrees

Compatibility

Designed for use with coupling size 4 matched sleeve inserts on keyed round bore shafts in inch-dimensioned drive systems including compressors, conveyors, motors, and pumps.

Installation Notes

Installation is typically 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 3/16-inch keyway width and 3/32-inch keyway depth before pressing the flange onto the shaft. Tighten the included set screws to secure the flange, ensuring one screw seats over the keyseat and the second is positioned at 90 degrees per standard coupling assembly practice.

Technical Specifications

• Coupling Size: 4
• Maximum Speed: 7,600 RPM
• Outside Diameter: 2.5 inches
• Hub Diameter: 1.625 inches
• Bore Diameter: 0.625 inches
• Bore Tolerance: plus 0.0005 inches / plus 0.0015 inches
• Keyway Width: 0.1875 inches
• Keyway Depth: 0.09375 inches
• Length Through Bore: 0.859 inches
• Hub Body Length: 0.422 inches
• Hub Material: Carbon Steel
• Bore Type: Round Keyed
• Misalignment Types: Angular, Parallel
• Included Hardware: 2 Set Screws, 1/4-20 thread
• Weight: 0.4 pounds
• Country of Origin: USA (subject to change)

Standard Information

• Brand: TB WOODS
• Manufacturer Part Number: TB-4J58