上海充通大学 More about Velocity ratio .Velocity ratio (m or i) >The ratio of the rotational speed of the gears. >Or ratio of output gear to the input gear for a single pair of gears. my @G /Op=rp/TG (First Definition) .Others define it as the ratio of speed between input to output gear. my=p/@G=IG/Tp (Second Defintion) 上海充通大粤 More about Velocity ratio .Not to be confused,a good way to describe VR as iab =@a /Op=Ip/Ta iGP=@G/@p=Tp/TG .INCLUDE direction and magnitude Magnitude Direction12 More about Velocity ratio •Velocity ratio (mv or i) The ratio of the rotational speed of the gears. Or ratio of output gear to the input gear for a single pair of gears. mv = G /P = rP/rG (First Definition) •Others define it as the ratio of speed between input to output gear. mv = P/G = rG/rP (Second Defintion) iab = a /b = rb/ra •Not to be confused, a good way to describe VR as iGP = G /P = rP/rG •INCLUDE direction and magnitude Direction More about Velocity ratio