Ball bearing assembly for e.g. guiding shaft of turbocharger in boat, has ball bearings, where balls made of ceramic material e.g. silicon nitride, are rolled between rings of bearings and have points contacted with rings of one of bearings

摘要

The assembly has an oblique ball bearing (20) including an inner ring (24) and an outer ring (26) between which balls (28) are rolled. A ball bearing (22) has an outer ring (36), a main inner ring (38) that recovers an axial load in a main axial direction, and a complementary inner ring (40) that recovers axial efforts exerted in an axial direction opposite to the main direction. Balls (42) are rolled between the rings (36, 38, 40) and have contact points that are contacted with the rings (36, 38, 40), where the balls (28, 42) are made of ceramic material such as silicon nitride.