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

40B12 7/8" Finished Bore Sprocket (40BS12H-7/8)

Item ID: 40B12-7/8
Availability: 29 In Stock
Price: $7.32
Retail Price:$9.50
Your Savings:$2.18(23%)

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40BS12 7/8" Sprocket Description

Our 40BS12H sprocket is an ANSI standard size sprocket with a 7/8" finished bore - includes keyway & 2 setscrews. This 11 tooth sprocket works with any ANSI #40 roller chain. Nitro 40B12 sprockets are manufactured from 1045CD carbon steel and have hardened teeth to minimize wear overtime.

40B12 sprocket diagram

40BS12 Sprocket Dimensions:

  • Fits ANSI Chain Size:#40
  • Bore (D1):7/8"
  • Number Of Teeth:12
  • Pitch Diameter (dp):1.932"
  • Outside Diameter (de):2.166"
  • Sprocket Thickness (B1):0.284"
  • Hub Diameter (dm):1-9/16"
  • LTB - Length Thru Bore (A):7/8"
  • Keyway Size:3/16" X 3/32"
  • Hardened Teeth:Yes (HRC 40-50)
  • Number Of Setscrews:2
  • Material:1045CD (Cold Drawn)
  • Type Of Finish:Black Oxide

Interchange Numbers:

  • 40BS12 7/8
  • 40BS12H 7/8