50B21 3/4
Picture may not depict actual tooth count

50B21 3/4" Finished Bore Sprocket (50BS21H-3/4)

Item ID: 50B21-3/4
Your Price: $14.41
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ANSI Type B / BS finished bore sprockets have a hub on one side with two set screws and a keyway.  All Type B / BS Nitro sprockets have a black oxide finish.


Fits ANSI Chain Size: #50
Bore (D1): 3/4"
Number Of Teeth:21
Outside Diameter (de): 4.521"
Sprocket Thickness (B1): 0.343" (Not including Hub)
Hub Diameter (dm): 3"
LTB - Length Thru Bore (A): 1"
Keyway Size: 3/16" X 3/32"
Hardended Teeth: Yes (30-45Rc)
Number Of Setscrews: 2


Interchange Numbers:

50BS21-3/4
50BS21H-3/4

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