40A12 Linn
Linn Roller Chain Sprocket, Type A Single Strand Machine Cut Stock Bore, 1/2 in Bore Dia, 2.166 in Outside Dia, #40 Chain, 12 Teeth, 1/2 in Pitch, 1.932 in, Steel
Linn Roller Chain Sprocket, Type A Single Strand Machine Cut Stock Bore, 1/2 in Bore Dia, 2.166 in Outside Dia, #40 Chain, 12 Teeth, 1/2 in Pitch, 1.932 in, Steel