Patent ID: 7537391

Claim:
A roller bearing ( 10 ) comprising: a plurality of bearing rollers ( 12 ) located between confronting bearing surfaces ( 16 , 19 ), said confronting bearing surfaces being rotatable one relative to the other about a rotational axis of the bearing, and biasing means ( 18 ) which provides a biasing force acting in a direction between said confronting bearing surfaces ( 16 , 19 ), said biasing force provided by deformability of i) at least one of the confronting bearing surfaces ( 16 , 19 ) or ii) at least one of said bearing rollers ( 20 ), wherein i) an edge region of a bearing surface of at least one of said confronting bearing surfaces or ii) a bearing surface of said at least one bearing roller, when in an unstressed condition, comprises a zone ( 15 , 23 ) which protrudes above an adjacent surface region to said bearing surface, which edge region, in the assembled bearing, exerts the aforementioned biasing force, in such a way that under all load conditions for which the bearing is designed for use, each bearing roller is retained in contact with each of said confronting bearing surfaces.