Abstract: A bearing assembly includes an inner race, an outer race, two opposite sealing plates, and at least one sealing ring. Thus, the sealing tip of the sealing ring is rested on the surface of the sealing plate in an elastic manner so as to decrease the friction between the sealing ring and the surface of the respective sealing plate. In addition, the sealing tip of the sealing ring can sputter the water or dust outward from the bearing assembly by action of the centrifugal force, thereby enhancing the sealing effect of the bearing assembly, so as to provide the waterproof and dustproof effects.

Abstract: A bearing assembly has a sleeve, a first ball-receiving chain enclosing the sleeve, a second ball-receiving chain enclosing the sleeve, the first ball-receiving chain engaging with the second ball-receiving chain, a collar, a first gasket, a second gasket, a first rubber washer, and a second rubber washer. The first gasket, the sleeve, and the second gasket are inserted in the collar. The first rubber washer encloses the sleeve. The second rubber washer encloses the sleeve. The first ball-receiving chain and the second ball-receiving chain receive a plurality of balls.