//(Chain Drives) Example 14.5
//Data from Example 14.4
//Pitch of the chain drive p (mm)
p = 19.05
//Diameter of the roller d1 (mm)
d1 = 12.07
//Width of the roller b1 (mm)
b1 = 11.68
//Number of teeth on the driving sprocket z1
z1 = 17