Rolls-royce Corporation

Graham Paul Morton

Daren Ashmore

Stephen McDonagh

James Alan Plant

James Plant

Stephen Terence Mcdonagh

A bearing cage for a rolling element bearing assembly includes an outer surface, an inner surface defining a bore, and a plurality of pockets. Each pocket of the plurality of pockets is configured to house a rolling element of the rolling element bearing assembly. The plurality of pockets are arranged sequentially around the bearing cage with respect to an axis of the bore. A guide portion of the inner surface is tapered in an axial direction of the bore such that dimensions of the bore increase towards a central region of the bore, and the bearing cage further includes a plurality of conduits providing fluidic communication between the inner surface of the bearing cage and the outer surface of the bearing cage.

Tapered oil feed bearing cage

An outer ring for a rolling element bearing has three mounting pads on its outer surface. The inner surface of the ring is arranged to be non-circular, with its effective radius being at a minimum at the three points midway between adjacent pairs of mounting pads. This provides a preload on the rolling elements of the bearing in use, preventing skidding, but because the ring is not supported between the pads it can still flex under loads. The ring may be oriented in use so that transient loads are directed through one of the mounting pads.

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Nottingham, United Kingdom

Graham Paul Morton