| 摘要 |
A roller bearing comprises inner and outer rings 5, 3, a series of dumb-bell shaped rolling elements 2 positioned therebetween, independent retention means 4 (in the form of a resilient split ring and which acts so as to retain the rolling elements 2 between the rings 3, 5), and wherein the inner peripheral surfaces of the rings 3, 5 extend with uniform spacing over the whole axial width of the bearing, each rolling element 2 having a groove 20 which extends radially inwards from their outmost surface and the independent retention means 4 being located in the rolling element's groove 6 as well as in groove 20 of the inner peripheral surface of one of the rings. During operation of the bearing relative radial and axial displacements can occur between roller 2 and rings 3, 5 and results in gaps 8, 9 increasing/decreasing in size. Bases 17, 18 and flank walls 10 of grooves 6, 20 limit the displacement of retention member 4. A continuous cage element (7, Fig 5) comprising a series of shaped blocks/wedges (37) between rollers 2 thereby define pockets (37') and joining strips (12) extend between blocks (37). Also disclosed is a cage which is partly deformable so as to assume a smaller/longer diameter than that defined by the fitment of the cage with rolling elements 2, and a method of fitting such a cage in to a bearing arrangement. |
