50A17 40mm Bore Type A Sprocket **Solid in 20's, Priced Individually**
ANSI Type "A" sprockets are hubless sprockets with a stock bore. These are also commonly referred to as plate sprockets. All Type "A" Nitro sprockets have a black oxide finish.
Size Chain: #50
# of Teeth: 17
Bore (D1): 5/8
Outside Diameter (de): 3.719
Sprocket Thickness (B1): 0.343
Manufactured from 1018 mild steel.