to any type of desired frame not shown inner race 74 is secured to an inner race retainer assembly 82 that includes generally annular upper portion 84 and a generally annular lower portion 86 with the latter having a conical or tapered surface 88 corresponding and juxtaposed on conical surface 90 of inner race 74 it should also be noted that there is no radial contact between retainer upper portion 84 and cylindrical surface 92 of inner race 74 and similarly there is no axial contact between lower horizontal surface 94 of inner race 74 and the facing horizontal surface 96 of retainer lower portion 86 interposed between lower surface 97 of retainer upper portion 84 and upper surface 99 of retainer lower portion 86 are a plurality of shims 60 previously described with reference to bearing 22 a plurality of machine bolts 62 are utilized for securing together retainer portions 84 and 86 as well as confining shims 60 therebetween bearing 72 similarly to bearing 22 also utilizes rolling elements or balls 30 that are separated via spacer means 64 basically inner race retainer lower portion 86 contacts inner bearing race 74 via juxtaposed conical surfaces 88 and 90 respectively this conical contact forces inner race 74 outwardly toward ball path 32 thereby crowding balls 30 against outer race 78 slot 76 in inner race 74 allows inner race 74 which thus assumes the properties of an elastic open ring to flex outwardly or inwardly depending on the load exerted by the race retainer clamping force from the interior of the.