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Picture may not depict actual tooth count
Picture may not depict actual tooth count

40B20 1" Finished Bore Sprocket (40BS20H-1)

Item ID: 40B20-1
Availability: 183 In Stock
Price: $13.16
Retail Price:$17.09
Your Savings:$3.93(23%)

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40B20-1 Finished Bore Sprocket - 40BS20H 1"

Our 40BS20H sprocket is an ANSI standard size sprocket with a 1" finished bore (Includes keyway & 2 setscrews). This is a 20 tooth sprocket that works with an ANSI #40 roller chain. Nitro sprockets are manufactured from 1045CD carbon steel and have hardened teeth to minimize wear overtime.

40b20 1 sprocket diamgram
40BS20 Sprocket Dimensions:
  • Fits ANSI Chain Size: #40
  • Bore (D1): 1"
  • Number Of Teeth: 20
  • Pitch Diameter (dp): 3.196"
  • Outside Diameter (de): 3.457"
  • Sprocket Thickness (B1): 0.284" (Not including Hub)
  • Hub Diameter (dm): 2-5/8"
  • LTB - Length Thru Bore (A): 1"
  • Keyway Size: 1/4" X 1/8"
  • Material: 1045CD (Cold Drawn)
  • Hardened Teeth: Yes (HRC 38-42)
  • Number Of Setscrews: 2
Internchange Numbers:
  • 40BS20 1"
  • 40BS20H 1"