Length of Belt (\(L\)):

\[ L = 1.57(Dr + Dn) + \sqrt{C^2 + Dr^2} + \sqrt{C^2 + Dn^2} \]

Where:

• \(L\) is the length of the belt, inches.
• \(C\) is the center distance between pulleys, inches.
• \(Dr\) is the diameter of the driver pulley, inches.
• \(Dn\) is the diameter of the driven pulley, inches.