Tb Woods TB-3J12 Sleeve Coupling Flange 3 Coupling Size

Product Description

The TB WOODS TB-3J12 is a finished bore sleeve coupling flange designed for close-coupled shaft connections in mechanical power transmission systems. With a coupling size of 3 and an outside diameter of 2-1/16 inches, this carbon steel flange mounts directly to a keyed round bore shaft with a bore diameter of 1/2 inch and a bore tolerance of +0.0005 inches to +0.0015 inches. It pairs with a matched sleeve insert to complete the coupling assembly. Rated to a maximum speed of 9,200 RPM, this flange is built for demanding rotating equipment applications installed by mechanical and industrial service technicians.

This sleeve coupling flange is suited for use in both light industrial and commercial applications involving compressors, conveyors, motors, and pumps. It handles angular and parallel misalignment through a 4-way flexing action that also absorbs shock, vibration, and end float. The flange is compatible with inch-measurement keyed shafts and is a common choice in pump and motor close-coupling configurations where tight shaft engagement and chemical and oil resistance are required.

Key Features

• Carbon steel hub construction with chemical and oil resistance for harsh service environments
• 4-way flexing action absorbs shock, vibration, misalignment, and end float
• Accommodates both angular and parallel shaft misalignment
• Finished bore with 1/16-inch keyway width and 1/8-inch keyway depth for secure keyed shaft engagement
• Includes two set screws — one over keyseat and one at 90 degrees — threaded 1/4-20
• Rated to 9,200 RPM maximum speed for high-cycle rotating equipment

Compatibility

Designed for use with inch-measurement round keyed shafts on compressors, conveyors, motors, and pumps requiring a size 3 sleeve coupling assembly with a matched sleeve insert.

Installation Notes

Installation is typically performed by a millwright or mechanical technician. Disconnect and lock out all power to the drive system before mounting or removing coupling flanges. Verify shaft and bore dimensions and keyway alignment before pressing or sliding the flange onto the shaft. Follow applicable ANSI and OSHA machinery guarding standards when coupling assemblies are installed in rotating equipment.

Technical Specifications

• Coupling Size: 3
• Maximum Speed: 9,200 RPM
• Bore Diameter: 1/2 inch
• 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
• Hub Material: Carbon Steel
• Bore Type: Round Keyed
• Shaft Type: Keyed
• Misalignment Types: Angular, Parallel
• Included Hardware: 2 Set Screws, 1/4-20 thread
• Resistance Properties: Chemical Resistant, Oil Resistant
• System of Measurement: Inch
• Weight: 0.3 pounds
• Country of Origin: USA (subject to change)

Standard Information

• Brand: TB WOODS
• Manufacturer Part Number: TB-3J12