In: Mechanical Engineering
For a bicycle, the nominal diameter of the outer race of a ball bearing and the inner surface of the hub is 62 mm. What should be the maximum dimension for the outer race of the ball bearing if a medium drive hole basis fit is desired? Use a preferred fit.
As medium drive hole basis fit is desired ,the general condition of choosing the type of fit as given below from figurehence Interference fit H7/u6 is being choosen
outer race of bearing acts as hole so the lower limit of outer race will be the nominal size and tolerance will be take from table below for nominal diameter 62 mm
Minimum size= 62mm
Maximum size= 62+0.030=62.030mm