Sprocket Diameter Calculator
Diameter of the sprocket is measured along the circle through the centerline of the chain rollers.
Roller Chain Dimensions (in Inches)
| Chain # | Pitch | Roller Dia. | Roller Width |
|---|---|---|---|
| 35 | .375 | .200 | .1875 |
| 40 | .500 | .312 | .3125 |
| 420 | .500 | .306 | .3125 |
| 41 | .500 | .306 | .2500 |
| 520 | .625 | .400 | .2500 |
| 530 | .625 | .400 | .3750 |
Example:
