math for pulley belt length formula
Free calculate the length of belt required to connect two pulleys of different sizes. Get instant, accurate results with our easy-to-use calculator.
Input Parameters
Distance between pulley centers
Results
Enter pulley diameters and center distance to calculate belt length
Belt Length Formula
Formula
L = 2C + π(d₁ + d₂)/2 + (d₂ - d₁)²/(4C)
Where:
- • L = belt length (m)
- • C = center distance (m)
- • d₁ = pulley 1 diameter (m)
- • d₂ = pulley 2 diameter (m)
For equal pulleys: L = 2C + πd
Belt Types
- • Flat belt
- • V-belt
- • Timing belt
- • Round belt
- • Ribbed belt