| 摘要 |
A hollow roller bearing has inner and outer races with the former provided with opposing axially spaced generally radially outwardly projecting shoulders. Roller bearings, hollow by diameter in the range 55% to 75% are disposed between the shoulders and in loose engagement with the inner and outer races during initial assembly. The bearings are thereafter pressed onto a shaft for preloading and assembly is thus completed. A method for making bearings involves the provision of the bearing as described with a loose assembly of the elements. The mounting method involves the press fitting of the loosely assembled elements on a shaft where upon preloading is achieved.
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