| 摘要 |
Described is a bearing including an annular inner raceway formed directly on the outer periphery of a rotary shaft, a plurality of bearing balls held between the inner raceway and an outer raceway formed on the outer periphery of an outer ring, a retainer for retaining the balls in position and a tubular housing securely fitted to the outer ring. The bearing may be designed as the double row type by providing a pair of outer rings each having an inner raceway and a pair of outer raceways formed on the rotary shaft. The inner ring may be dispensed with so that the bearing may be simplified in design and improved in load withstand properties.
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