Aircraft ball bearing squirrel cage with beams with enlarged ends

A rotating assembly for an aircraft, comprising:

• a shaft;
• a static structure, and a ball bearing assembly supporting said shaft on said static structure;
• the ball bearing assembly having an inner race, a plurality of balls and an outer race positioned radially outwardly of the plurality of balls, the outer race secured to a squirrel cage that connects the outer race to static structure;
• the squirrel cage having a central axis that is parallel to an axis of rotation of the shaft;
• said squirrel cage having a plurality of recesses separated by beams, the beams having a radially inner surface and a radially outer surface defined relative to the central axis, and extending between axial ends and through an intermediate portion, and the beams having a end radial thicknesses at each of the axial ends that is greater than an intermediate radial thickness at the intermediate portion;
• wherein the recesses are formed along a curve, such that there are end curved recess portions at the axial ends, and intermediate curved recess portion through the intermediate portion;
• wherein the radially inner surface of the beam has curves at each of the axial ends merging into the beam intermediate portion;
• and
• wherein the beam has curves at the radially inner surface of the beam at the axial ends, but a flat surface that is parallel to the rotational axis through the intermediate portion.