40B18 7/8" Finished Bore Sprocket (40BS18H-7/8)

Nitro 40B18-7/8 Finished Bore Sprocket

Our 40BS18H sprocket is an ANSI standard sprocket with a 7/8" finished bore that has a keyway & 2 setscrews. 40BS18 sprockets are an 18 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.

40BS18 7/8" Sprocket Dimensions:

• Fits ANSI Chain Size: #40
• Bore (D1): 7/8"
• Number Of Teeth: 18
• Pitch Diameter (dp): 2.879"
• Outside Diameter (de): 3.136"
• Sprocket Thickness (B1): 0.284" (Not including Hub)
• Hub Diameter (dm): 2-5/16"
• LTB - Length Thru Bore (A): 1"
• Keyway Size: 3/16" X 3/32"
• Hardened Teeth: Yes (HRC 38-42)
• Number Of Setscrews: 2
• Material: 1045CD (Cold Drawn)
• Type Of Finish: Black Oxide

Interchange Numbers:

• 40BS18 7/8
• 40BS18H 7/8