Retention against rotational and axial movement of a two row ball bearing cartridge in the housing of a turbomachine with squeeze film damping

摘要

A bearing cartridge comprising: an outer race that comprises an opening for both drainage of lubricant and receiving a pin to limit rotation of the outer race, a transition from a first outer diameter of the outer race to a smaller second outer diameter of the outer race and a well in a portion of the outer race corresponding to the second outer diameter; and an inner race rotatably supported by bearings disposed between the outer race and the inner race.