Tritan 40BS23H 5/8 Sprocket Finished Bore Keyway SS 40 Chain Size collectible

Precision chain sprocket

The Tritan 40BS23H is a finished-bore sprocket with a 5/8 in bore and a 3/16 in keyway for positive drive. It carries 23 teeth cut for 40 chain pitch and presents a 3.94 in outside diameter. The steel body receives a black-oxide finish and includes two set screws for secure shaft locking. It suits maintenance teams and OEM builders who need a ready-to-mount replacement component.

Build integration

A one-sided hub measuring 3 in diameter projects .716 in from the plate, leaving the opposite face clear for flush mounting against bearings or guards. The fixed bore removes the need for separate bushings or adapters, reducing part count and assembly time. The 1 in length through bore provides full key engagement without protruding past the hub face. Buyers who require a through-bore longer than 1 in or a different hub profile will need an alternative sprocket design.

Sustained operation

Black-oxide coating resists surface corrosion during extended runs in humid or wash-down environments. The 3.672 in pitch diameter and hardened steel teeth maintain consistent chain engagement over long duty cycles without premature wear. Two set screws and a 3/32 in deep keyway prevent rotational slip when torque loads persist across shifts. Applications demanding stainless-steel construction or a higher tooth count for reduced chain speed are outside this product’s specification.