U.s. Tsubaki 35B13FL Finished Bore Sprocket 13T 3/8in

Product Description

The U.S. TSUBAKI 35B13FL is a finished bore roller chain sprocket designed for use with ANSI No. 35 chain at a 3/8 inch pitch. Machined from steel, this sprocket features 13 teeth, a finished bore diameter of 3/4 inch, a hub diameter of 1.25 inches, and an outside diameter of 1.75 inches. The finished bore means the hub is fully machined to final size and ready to mount directly to a shaft without additional boring. Licensed HVAC, plumbing, and general mechanical technicians as well as industrial maintenance professionals install this type of sprocket in chain-driven power transmission assemblies.

This sprocket suits light-duty conveyor systems, small power transmission drives, and chain-driven equipment where No. 35 chain is specified. Typical installations include compact mechanical assemblies in commercial and light industrial environments. The 3/4 inch finished bore fits a standard shaft size common in many fractional-horsepower drive applications. Because bore diameter is fixed at 3/4 inch, confirm shaft diameter before ordering.

Key Features

• Finished bore at 3/4 inch - mounts directly to shaft with no additional machining
• 13 teeth with 3/8 inch pitch, compatible with ANSI No. 35 roller chain
• Steel construction for durability in power transmission applications
• Outside diameter of 1.75 inches for compact drive designs
• Hub diameter of 1.25 inches provides adequate wall thickness for set screw or keyway retention

Compatibility

Designed for use with ANSI No. 35 roller chain at 3/8 inch pitch. Bore diameter is fixed at 3/4 inch; verify shaft diameter matches before installation.

Installation Notes

Installation is performed by qualified mechanical or industrial maintenance technicians. Disconnect and lock out all power to the drive system before mounting or removing any sprocket. Align the sprocket carefully with mating sprockets and verify chain tension per drive manufacturer guidelines before restoring power. Consult applicable ANSI and OSHA machine guarding standards when replacing sprockets in exposed drive assemblies.