Center Distance (\( C \)):

\[ C = \frac{b + \sqrt{b^2 - 32(D_l - D_s)^2}}{16} \]

Where:

• \( C \) is the distance between centers of pulleys, mm.
• \( b = 4L_s - 6.28(D_l + D_s) \)
• \( L_s \) is the available belt standard length, mm.
• \( D_l \) is the diameter of the larger pulley, mm.
• \( D_s \) is the diameter of the smaller pulley, mm.