#40 Chain Sprocket with 21 Tooth and 1 1/2" Finished Bore, Model #40BS21-1 1/2 Sheave Pulleys & Bushing Keyway: 3/16"×3/32"

Keyway: 3/16"×3/32"

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#40 Chain Sprocket with 21 Tooth and 1 1/2" Finished Bore, Model #40BS21-1 1/2 Sheave Pulleys & Bushing Keyway: 3/16"×3/32"Sprocket #40 Chain 21 Tooth, 1 1 2 Finished Bore with Keyway & Set Screws Looking for a reliable #40 chain sprocket? This 21 tooth, 1 1 2 finished bore sprocket is built for dependable power transmission and comes ready to install with a precision keyway and two set screws for secure mounting. Its a durable choice for conveyors, industrial machinery, agricultural equipment, and general power transmission systems. Product Specifications Bore Size: 1 1