Abstract: A preloaded ball bearing assembly includes a primary bearing assembly disposed between a rotating component and a static structure. The assembly also includes a preload bearing assembly disposed in contact with the rotating component. The assembly further includes a flexible support disposed between the primary bearing assembly and the preload bearing assembly.

Abstract: A cylindrical roller bearing installation tool is provided. The cylindrical roller bearing has a plurality of rollers. The installation tool includes a ring-shaped body and a plurality of alignment projections. The ring-shaped body has a circumference and an inner bore. The plurality of alignment projections extend substantially axially outwardly from the body, and are distributed around the circumference of the ring-shaped body. Each alignment projection has at least one roller engagement surface. Each of the alignment projections is uniformly spaced around the circumference of the ring-shaped body.

Abstract: A preloaded ball bearing assembly includes a primary bearing assembly disposed between a rotating component and a static structure. The assembly also includes a preload bearing assembly disposed in contact with the rotating component. The assembly further includes a flexible support disposed between the primary bearing assembly and the preload bearing assembly.

Abstract: An inner ring of an under race lubricated bearing assembly that includes an outer surface, an inner surface, and an inner race formed on the outer surface of the inner ring. A plurality of circumferentially spaced axial slots is formed on the inner surface of the inner ring, and a first set of circumferentially spaced partial circumferential slots is formed on the inner surface of the inner ring adjacent a first end of the inner ring. Each partial circumferential slot intersects at least one of the axial slots. The inner ring also includes a first set of radial holes, where each radial hole extends from the outer surface of the inner ring to one of the partial circumferential slots.

Abstract: An inner ring of an under race lubricated bearing assembly that includes an outer surface, an inner surface, and an inner race formed on the outer surface of the inner ring. A plurality of circumferentially spaced axial slots is formed on the inner surface of the inner ring, and a first set of circumferentially spaced partial circumferential slots is formed on the inner surface of the inner ring adjacent a first end of the inner ring. Each partial circumferential slot intersects at least one of the axial slots. The inner ring also includes a first set of radial holes, where each radial hole extends from the outer surface of the inner ring to one of the partial circumferential slots.