Martin 100B20 Stock Bore Type B Single Pitch Roller Chain Sprocket, 1-5/16 in Dia Bore, 8.642 in OD, #100 Chain, 20 Teeth, 1-1/4 in Pitch, Steel
B style sprockets are flat sprockets with a hub extension welded on one side. These plain bore sprockets can easily be bored to a metric or standard size to fit your application. Keyways, set screws and hardened teeth are quick alterations that can be made.
Martin Single Pitch Roller Chain Sprocket, Stock Bore Type B, 1-5/16 in Bore Dia, 8.642 in Outside Dia, #100 Chain, 20 Teeth, 1-1/4 in Pitch, 7.991 in, 4-1/2 in Hub Dia, 2 in Length Through Bore, Steel
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