Our 40BS40H sprocket is an ANSI standard size sprocket with a 1" finished bore - includes keyway & 2 setscrews. This 40 tooth sprocket works with any ANSI #40 roller chain. Nitro 40B40 sprockets are manufactured from 1045CD carbon steel and have hardened teeth to minimize wear overtime.
40B40 1" Sprocket Dimensions
ANSI Chain Size:40
Pitch Diameter (dp):6.373''
Outside Diameter (de):6.653''
Sprocket Thickness (B1):0.284''
Hub Diameter (dm):3-1/2''
Length Thru Bore (LTB):1-1/8''
Keyway Size:1/4'' X 1/8''
Hardened Teeth:Yes (HRC 40-50)
No. Of Setscrews:2
Type Of Finish:Black Oxide
Nitro® sprockets are manufactured from 1045 cold drawn carbon steel. Many competitors use lower grade steels such as 1018, 1025 or even powdered metal.
Bores are finished with a keyway & 2 setscrews.
Black Oxide Finish
After all phases of sprocket manufacturing are completed, the sprockets are finished with a black oxide to protect against corrosion.
Our sprockets are laser marked with Nitro item ID for easier identification while stocked in your inventory.*