| 摘要 |
1,012,739. Bearings. ROLLER BEARING CO. OF AMERICA. Oct. 9, 1962 [May 2, 1962], No. 38239/62. Heading F2A. A cage 20 (Figs. 1 and 9) for retaining bearing rollers 24 comprises limiting end walls 21 and crossbars 23 as side walls defining spaced, axially-parallel windows 24 for retaining the rollers 24, each of every pair of opposed side walls having at least two inclined wall sections extending throughout the wall depth, which radially converge and diverge alternately to each other relative to the cylinder axis along the window length, each pair of sections having their convergent ends spaced apart a distance less than the roller diameter to prevent the free passage of a roller 24 therebetween and having their divergent ends spaced apart a distance greater than the roller diameter. In a modification (Fig. 14) one side wall only of a window is sectioned. In Fig. 9 we have three pairs of opposing wall sections 35, 36 and 37, 38, also 39, 40, a groove 25 being in the cross-bars 23. The angle of inclination of a wall section on one side of each window may be parallel to a non-opposed section on the other side. At least one wall section may be parallel to a radial plane extending substantially mid-way between all the opposed wall sections. In addition at least one wall section may be parallel to an opposed wall section. In Fig. 14, with the unsectioned wall 80, wall sections 83, 84, and 85 are inclined similarly to wall sections 36, 38, 40 in Fig. 9, the end wall sections 82, 86 being parallel to a radial plane which is substantially midway through the window and providing end guidance for the roller. Two rollers may be inserted in each window (Fig. 3), a suitable form of wall sectioning therefor being shown in Fig. 16, with which a single roller may be used in a relatively long window. Fig. 5 shows a cage with two separated rows of rollers. A cage may be split through diametrically-opposed cross-bars, each half being self-contained. The window(s) of a cage may have tapered pockets at the ends thereof. |
