50X32 engineering class chains & precision roller chains. Single strand chain, multi-strand chains, double pitch chains, corrosion resistant chains, self-lubricating chains, attachment chains, leaf chains, and specialty chains.1373a ChainWeld 80b12f 1j SprocketSprockets 

Bore 100a12h-Sb Sprocket to 8 Strand To Chain Splice Fir Chain For Overhead Conveyor – Hub 2″

Fits #50 Roller Chain

32  Tooth

Outside Diameter = 6.720″

Pitch Diameter = 6.376″

These are Flat Plate Steel Weld Sprockets

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