50A20 Type "A" Plate Sprocket 3/4" Stock Bore

50A20 Sprocket Description

50A20 sprockets are a ANSI standard size that has 20 teeth and works with #50 roller chain. These sprockets are known as a "Type A", which is a hubless roller chain sprocket. Our 50A20 plate sprockets are a durable, high strength sprocket that is manufactured from 1045CD carbon steel. After manufacturing, the teeth are hardened to help minimize wear, then a black oxide finish is applied for corrosion resistance.

50A20 Sprocket Dimensions

• Fits ANSI Chain Size:#50
• Number Of Teeth:20
• Bore (D1):3/4"
• Pitch Diameter (dp):3.995"
• Outside Diameter (de):4.321"
• Sprocket Thickness (B1):0.343"
• Material:1045CD (Cold Drawn)
• Hardened Teeth:Yes (HRC 40-50)
• Type Of Finish:Black Oxide

Interchange Numbers

• 50A20H