40B28 3/4" Finished Bore Sprocket (40BS28H-3/4)

Nitro 40B28-3/4 Finished Bore Sprocket

Our 40BS28H sprocket is an ANSI standard sprocket with a 3/4" finished bore that has a keyway & 2 setscrews. 40BS28 sprockets are a 28 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.

40BS28 3/4" Sprocket Dimensions:

• Fits ANSI Chain Size: #40
• Bore (D1): 3/4"
• Number Of Teeth: 28
• Pitch Diameter (dp): 4.466"
• Outside Diameter (de): 4.738"
• Sprocket Thickness (B1): 0.284" (Not including Hub)
• Hub Diameter (dm): 3-1/4"
• 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:

• 40BS28 3/4
• 40BS28H 3/4