Patent ID: 6511228
Filing Date: 2003-01-28
Classification: F16C

Abstract:
A rotating bearing comprising:an outer ring defining an outer race; an inner ring defining an inner race; a plurality of rotating elements retained between the outer and inner races; an annular groove disposed in an annular inner surface of a rotating object of the rotary machine, the annular groove having in a cross-section, an open side towards a rotating axis of the rotating bearing, a first section radially distal from the open side and a second section radially between the open side and the first section; at least one radial passage to communicate with the annular groove and the inner race; and the at least one radial passage including an aperture in the annular groove located in the second section and the second section transitions smoothly from the aperture to the first section such that the first section of the annular groove communicates directly with the aperture to act as a reservoir when cooling and lubricant fluids under the centrifugal forces are collected in the annular groove and then delivered through the at least one radial passage into the area.