U.s. Tsubaki 60B12F-1B Finished Bore Sprocket 12T 3/4in

Product Description

The U.S. TSUBAKI 60B12F-1B is a finished bore sprocket designed for use with ANSI No. 60 roller chain. It features 12 teeth, a 3/4 inch chain pitch, and a maximum bore diameter of 1-1/8 inches. The outside diameter measures 3.25 inches. Constructed from steel, this sprocket is suited for power transmission applications where a pre-machined bore allows direct shaft mounting without additional boring operations. It is installed by mechanical technicians and maintenance professionals in industrial and light-commercial drive systems.

This sprocket is used in conveyor drives, packaging equipment, agricultural machinery, and general industrial power transmission systems that run ANSI No. 60 roller chain. The finished bore design simplifies installation by eliminating the need for secondary machining. It is appropriate for both new builds and replacement applications where a 3/4 inch pitch, 12-tooth steel sprocket is required.

Key Features

• Finished bore ready for direct shaft mounting at up to 1-1/8 inch bore diameter
• 12 teeth with 3/4 inch pitch, compatible with ANSI No. 60 roller chain
• 3.25 inch outside diameter
• Steel construction for durability in industrial drive applications
• ANSI Chain Trade Size 60 designation

Compatibility

Designed as a direct-fit finished bore sprocket for ANSI No. 60 roller chain drive systems requiring a 12-tooth, 3/4 inch pitch sprocket with a maximum bore diameter of 1-1/8 inches.

Installation Notes

Installation is performed by qualified mechanical technicians or millwrights. Disconnect and lock out all power to the drive system before removing or mounting sprockets. Ensure the shaft diameter does not exceed the maximum bore of 1-1/8 inches and that the keyway and set screw are properly fitted per the shaft specification. Verify chain alignment and tension after installation to prevent premature wear.