From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Detailed description of the form and function of an annular thrust bearing.
| Identifier | ExFiles\Box 114\2\ scan0257 | |
| Date | 19th December 1935 guessed | |
| form of the invention. Referring to the drawings, at 10 is shown generally an annular thrust bearing of conventional construction, compris- ing axially spaced race members or rings 11 and 12, between which are disposed rolling load members, such as the balls 13. The balls 13 are disposed in a circular row and are received and track in circular grooves or races 14 provided in the adjacent faces of the race rings 11 and 12. A retainer 16 is provided to hold the balls and space them circumferentially in the races, 10 which retainer comprises an annular member 17 of channel section and a co-operating annular disk 18. The web portion 19 of the member 17 is provided with spaced holes 21 through which the balls 13 project, and the member 18 is provided with similar aligned holes 22; the holes 21 and 22 being of less diameter than the balls 13 and adapted to embrace them with small clearance when the retainer is assembled. The members 17 and 18 are held in assembled position in any convenient manner as by spinning the flanges of member 17 over the periphery of member 18, as indicated at 23. 20 A bronze sleeve 26 is preferably secured in the bore of the rotating ring 12 in any suitable manner, as by pressing or spinning, and is provided with a portion 27 projecting axially through the retainer 16 toward the ring 11, with which it has a small end clearance when the bearing is under load. The sleeve 26 also has a small radial clearance with the innermost flange of the member 17 and acts to support the retainer 16 and the balls, and maintain them substantially in axial alignment with the race members when the bearing is not under load and the rings 11 and 12 move apart axially. 30 To limit such axial separation of the rings and to retain the members of the bearing in a unit, a shell or housing 28 is provided which may be spun or otherwise suitably secured to the ring 12, as indicated at 29. The housing 28 is extended - 4 - | ||