Description & Specifications
Our 40BS21H sprocket is an ANSI standard sprocket with a 1" finished bore that has a keyway & 2 setscrews. 40BS21 sprockets are a 21 tooth sprocket that works with ANSI #40 roller chain. These sprockets are manufactured from 1045CD carbon steel material. The sprocket teeth are hardened for increased wear resistance.
40B21 1" Sprocket Dimensions
- ANSI Chain Size:40
- Bore (D1):1''
- Tooth Count:21
- Pitch Diameter (dp):3.355''
- Outside Diameter (de):3.618''
- Sprocket Thickness (B1):0.284''
- Hub Diameter (dm):2-3/4''
- Length Thru Bore (LTB):1''
- Keyway Size:1/4'' X 1/8''
- Material:1045CD
- Hardened Teeth:Yes (HRC 40-50)
- No. Of Setscrews:2
- Type Of Finish:Black Oxide
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