play axial play and contact angle ballbearings most ballbearings are assembled in ... such a way that a slight amount of looseness exists between balls and raceways this ... looseness is referred to as radial play and axial ... between the two rings of an unmounted ball bearing in the direction parallel to ... geometry of the components in a ball bearing they bear a mutual dependence ... between a plane perpendicular to the ball bearing axis and a line joining the two ... points where the ball makes contact with the inner and outer ...