21 Teeth Sprocket 1/4" Pitch, 8mm Bore Carbon Steel with Set Screws 3/4"x1-5/8"x7/16" 18inch(Inner Width x H x

18inch(Inner Width x H x Inner Length)

Hex Nut Pitch: 1

2-inch(L*W*H)

OE Number:A2128850726

21 Teeth Sprocket 1/4" Pitch, 8mm Bore Carbon Steel with Set Screws 3/4"x1-5/8"x7/16" 18inch(Inner Width x H xFeatures: 1. Chain Sprockets are normally mounted in a fixed position on a fixed shaft. Round hole with 2pcs Set Screws at 90 degrees. The shaft can be fixed well, which is convenient to use. 2. The chain sprocket should not rotate at a greater speed than is allowable for drive sprockets of the same size. Every roller chain sprocket comes with strong teeth that can latch onto the chain. It is suggested that chain sprockets have at least three teeth in