Abstract: A bearing cage assembly (100) comprises a plurality of discrete bridge elements (206) disposed between adjacent rolling elements (112) and coupled between first and second axially spaced cage support wire rings (102, 104) which are appropriately tensioned. Spacers (110) are disposed between adjacent bridge elements and engage the bridge elements in a piloted engagement. The bridge elements maintain a separation between rolling elements, retain the rolling elements within the bearing assembly, and function as a lubrication reservoir for grease lubricated bearings. Profiled surfaces on the bridge elements position the bearing cage assembly on at least one axial end of the rolling elements.

Abstract: A bearing cage assembly (100) comprises a plurality of discrete bridge elements (206) disposed between adjacent rolling elements (1 12) and coupled between first and second axially spaced cage support wire rings (1 02, 1 04) which are appropriately tensioned. Spacers (1 10) are disposed between adjacent bridge elements and engage the bridge elements in a piloted engagement. The bridge elements maintain a separation between rolling elements, retain the rolling elements within the bearing assembly, and function as a lubrication reservoir for grease lubricated bearings. Profiled surfaces on the bridge elements position the bearing cage assembly on at least one axial end of the rolling elements.

Abstract: A compact modular assembly of a geared power train (100) and generator (400) suitable for use in a wind turbine application to maximize a step-up ratio between an input and output within a limited radial space. The power train is configured as a hybricyclic split-compound planetary gearing system with a grounded closed carrier flex pin system in a high torque stage (A), and an open carrier flex pin system in a low torque stage (B), having a step up ratio of approximately 30:1. To facilitate modular assembly and disassembly of the power train and generator, each component is mounted independently to opposite sides of a common support structure (500) anchored to a bedplate (502).

Abstract: A compact modular assembly of a geared power train (100) and generator (400) suitable for use in a wind turbine application to maximize a step-up ratio between an input and output within a limited radial space. The power train is configured as a hybricyclic split-compound planetary gearing system with a grounded closed carrier flex pin system in a high torque stage (A), and an open carrier flex pin system in a low torque stage (B), having a step up ratio of approximately 30:1. To facilitate modular assembly and disassembly of the power train and generator, each component is mounted independently to opposite sides of a common support structure (500) anchored to a bedplate (502).