Roller Chain Center Distance & Link Count Calculator
Enter sprocket tooth counts and desired center distance to calculate the required number of chain links (rounded to even) and the actual center distance.
How to Calculate Roller Chain Links and Center Distance
- Enter the chain number, driver and driven tooth counts, and desired center distance.
- The required number of links (rounded to even) and actual center distance are displayed in real time.
Select standard chain per JIS B 1802-1989
teeth
9–150 teeth
teeth
9–150 teeth
mm
Chain links must be an even number, so the actual center distance will differ slightly from the input value (30–5000 mm)
Result
Number of Links (Even)
— links
- Actual Center Distance
- — mm
- Error (ΔC)
- — mm
- Driver Pitch Circle Diameter (d1)
- — mm
- Driven Pitch Circle Diameter (d2)
- — mm
- Speed Ratio
- —
