Abstract: A bearing having an outer race, an inner race with a mounting flange formed thereon, two corresponding bearing grooves formed in each of the races, and two sets of rolling elements disposed in parallel relation in the bearing grooves of the inner and outer races and within two holding and guiding cages of the same continuous circular configuration arranged in parallel relation between the inner and outer races. The bearing is formed by mounting one of the cages on the inner race on the side thereof having the mounting flange, placing a first row of the rolling elements in the cage, slipping the outer race over the inner race while holding it slightly inclined and off-center with respect thereto, placing the second row of rolling elements into the corresponding bearing groove while moving the outer race towards a centered position and reducing the inclination thereof, and mounting the second cage.