| 摘要 |
A bearing assembly (2′) comprising a housing (3′) supporting first and second bearing ring portions (4, 4′) with bearing surfaces to engage an inner tubular member (1′) at axially spaced regions, characterized in that either: the bearing ring portions are provided by separate bearing rings (4′) supported in the housing member (3′) with bearing surfaces of different diameters; or the bearing ring portions are provided by a single bearing ring (4″) that is free to flex radially and is supported so that the second bearing ring portion is free to flex radially under load and its bearing surface than assumes a position with a greater diameter than that of the first bearing ring portion (4″). |
