Martin 120B17 Stock Bore Type B Single Pitch Roller Chain Sprocket, 1-1/4 in Dia Bore, 8.924 in OD, #120 Chain, 17 Teeth, 1-1/2 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, 1-1/4 in Bore Dia, 8.924 in Outside Dia, #120 Chain, 17 Teeth, 1-1/2 in Pitch, 8.163 in, 5-1/4 in Hub Dia, 2-3/8 in Length Through Bore, Steel
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