Bearing assembly for a rotary shaft machine

摘要

A bearing assembly for a rotary shaft machine comprises a support wall (12) having an essentially cylindrical passage (18) therethrough. A rolling bearing (20) is mounted within the passage (18). The inner race (24) is mountable onto a shaft (22) in such a way as to abut against a shoulder (26) of this shaft (22). A capsule (32) comprises a cylindrical part (34) and spring means (36). The cylindrical part (34) is fitted in the passage (18) and receives the outer race (30). The diameter of the passage (18) is such that the cylindrical part (34), equipped with the rolling bearing (20), can be slidingly fitted therein. The spring means (36) bears on the support wall (12) and is operatively connected to the cylindrical part (34) in such a way that the latter exerts a spring force on the outer race (30). The spring force tends to push the rolling bearing (20) against the shoulder (26) so as to compensate operational play of the rolling bearing (20). The cylindrical part (34) and the passage (18) are configured in such a way as to interlock with each other, so as to prevent rotation of the cylindrical part (34) in the passage (18).