U.s. Tsubaki 50B15F-1B Finished Bore Sprocket 15T 5/8in

Product Description

The U.S. TSUBAKI 50B15F-1B is a finished bore roller chain sprocket designed for use with No. 50 chain at a 5/8-inch pitch. Machined from steel, it features 15 teeth, a fixed bore diameter of 1-1/8 inches, a hub diameter of 2.375 inches, and an outside diameter of 3.32 inches. The finished bore design means the bore is already machined to the specified size and is ready for direct shaft installation without additional boring or broaching. This sprocket is installed by mechanical and industrial maintenance technicians in power transmission applications.

This sprocket is suited for light-to-medium duty power transmission systems that run No. 50 roller chain. Typical applications include conveyor drives, industrial machinery, agricultural equipment, and material handling systems requiring a 15-tooth sprocket at 5/8-inch pitch. The fixed 1-1/8-inch bore fits a standard shaft size common in these drive configurations. It is used in both new builds and replacement installations where a ready-to-mount finished bore sprocket is required.

Key Features

• Finished bore machined to 1-1/8 inches for direct shaft fitment with no additional machining
• 15-tooth count provides standard speed and torque ratio for No. 50 chain drives
• 5/8-inch chain pitch matches ANSI No. 50 roller chain
• Steel construction for durability in industrial and mechanical drive environments
• Outside diameter of 3.32 inches and hub diameter of 2.375 inches for compact drive packaging

Compatibility

Designed as an OEM-style replacement or new-installation sprocket compatible with ANSI No. 50 roller chain at 5/8-inch pitch. Fits shafts with a 1-1/8-inch diameter.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. De-energize and lock out the drive system before removing or installing any sprocket. Ensure the shaft is clean and free of burrs before pressing or sliding the sprocket into position. Align the sprocket with the mating sprocket and chain per standard power transmission alignment procedures before tensioning the chain.