Bearing assembly

bearing assembly for a turbomachine

A bearing assembly 7 for supporting a rotating shaft 6 is provided that comprises: a first bearing 10; a second bearing 11; a spring 12 applying a preload to each of the bearings 10, 11; and a sleeve 13 surrounding the spring 12 and the bearings 10, 11. The sleeve 13 comprises an end portion that extends axially beyond the first bearing 10, and the end portion comprises a step down 19 in outer diameter that defines a seat for an o-ring 19. The bearings 10, 11 are mounted to the shaft 6 on opposite sides of a stepped section. The inner race 14 of each bearing 10, 11 abuts the stepped section, which serves to space the two bearings 10, 11 by a predetermined length. The spring 12 surrounds the stepped section of the shaft 6 and applies an axial preload force on each of the two bearings 10,11.