Description & Specifications
100A21 sprockets are a ANSI standard size that has 100A21 teeth and works with #100 roller chain. These sprockets are known as a "Type A", which is a hubless roller chain sprocket. Our 100A21 plate sprockets are a durable, high strength sprocket that is manufactured from 1045 cold drawn carbon steel.
100A21 Sprocket Dimensions
- ANSI Chain Size:100
- Bore (B):1-1/4"
- Tooth Count:21
- Pitch Diameter (PD):8.387''
- Outside Diameter (D):9.044''
- Sprocket Thickness (T):0.692"
- Material:1045CD
- Hardened Teeth:Yes (HRC 40-50)
- Type Of Finish:Black Oxide
All dimensions listed are nominal values.
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