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40B12 1
Picture may not depict actual tooth count

40B12 1" Finished Bore Sprocket (40BS12H-1)

Item ID: 40B12-1
Availability: 399 In Stock Nitro 40B12-1
Price: $6.65
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40BS12 1" Finished Bore Sprocket

40BS12 1" ANSI sprocket is a 12 tooth sprocket with a 1" finished bore (Includes 2 setscrews & Keyway). Our 40BS12 sprockets are compatible with any #40 ANSI size roller chain. Teeth are hardened to 30-45Rc to help minimize tooth wear.

40BS12 Sprocket Diagram (40B12-1)
40B12-1 Sprocket Dimentions:

Fits ANSI Chain Size: #40

Bore (D1): 1"

Number Of Teeth:12

Outside Diameter (de): 2.166"

Sprocket Thickness (B1): 0.284" (Not including Hub)

Hub Diameter (dm): 1-9/16"

LTB - Length Thru Bore (A): 7/8"

Keyway Size: 1/4" X 1/8"

Hardended Teeth: Yes (30-45Rc)

Number Of Setscrews: 2

Interchange Numbers:
  • 40BS12-1
  • 40BS12H-1

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