Subject: Kinematics of Machinery

Topic: Belts, Chains and Brakes

Difficulty: High

An open chain drive system connecting the two sprockets it shown in fig. we have already discussed in art. That the length of belt for an open belt drive connecting the two pulleys of radii $r_{1}$ and $r_{2}$ and a centre distance x, is

$L=\pi(r_{1}+r_{2})+2x+\frac{( r_{1}-r_{2})^2}{x}$…...........(i)

If this expression is …