40BS12H X 1/2 Sprocket - 1/2" Pitch - 12 Teeth - 1/2" Finished Bore Includes 2 Set Screws - No Keyway Hardened Teeth. Has recessed groove in hub for chain clearance. Common Interchanges 40B12FH UST
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40BS12H X 1/2 Sprocket - 1/2" Pitch - 12 Teeth - 1/2" Finished Bore Includes 2 Set Screws - No Keyway Hardened Teeth. Has recessed groove in hub for chain clearance. Common Interchanges 40B12FH UST
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