Martin E60B12H Solid Stock Bore Type B Triple Strand Roller Chain Sprocket, 1 to 1.438 in Dia Bore, 3.249 in OD, 60 Chain, 12 Teeth, 3/4 in Pitch, Steel
Martin metric triple strand solid construction sprockets have proper spacing between chain rows. The sprockets are manufactured from high carbon steel. Martin does not stack "A" plates on multiples, but instead Martin machines teeth after the chain rows are already in place. 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 Roller Chain Sprocket, Solid Stock Bore Type B Triple Strand, 1 to 1.438 in Bore Dia, 3.249 in Outside Dia, 60 Chain, 12 Teeth, 3/4 in Pitch, 2.898 in, 2-1/8 in Hub Dia, 3 in Length Through Bore, Steel