Bearing cage with circumferential lubricant passages

A cage for a bearing, the bearing including an inner body having an inner raceway surface, an outer body disposed about the inner body so as to define an annular space, the outer body having an outer raceway surface, and a plurality of rolling elements disposed within the annular space and rollable simultaneously upon the inner raceway surface and the outer raceway surface, the cage comprising:

• an annular body disposeable within the annular space between the inner body and the outer body, having a centerline and including a plurality of pockets spaced circumferentially about the centerline, each pocket being configured to retain a separate one of the plurality of rolling elements and being bounded by a radial surface extending at least partially about a center of the pocket, and a plurality of interior circumferential passages, each one of the plurality of circumferential passages extending circumferentially between a separate pair of adjacent pockets and being bounded by a single enclosed cylindrical surface extending circumferentially and continuously between the pair of adjacent pockets and including a first opening through the radial surface of one of the pair of adjacent pockets and a second opening through the radial surface of the other one of the pair of adjacent pockets such that each circumferential passage directly fluidly connects the pair of adjacent pockets and is only fluidly connected with the pair of pockets.