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RACEWAY RING MEMBER FOR BEARING UNIT, BEARING UNIT, AND METHOD AND DEVICE FOR PRODUCING RACEWAY RING MEMBER FOR BEARING UNIT
RACEWAY RING MEMBER FOR BEARING UNIT, BEARING UNIT, AND METHOD AND DEVICE FOR PRODUCING RACEWAY RING MEMBER FOR BEARING UNIT
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机译:用于轴承单元的滚道环构件,轴承单元以及用于制造轴承单元的滚道环构件的方法和装置
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摘要
There is provided a bearing unit including one raceway ring 2 which is mounted on a vehicle body, the other raceway ring 4 which is disposed to face the one raceway ring 2 and is mounted on a wheel, and a plurality of rolling elements 6, 8 which are built in rollably between an outer ring raceway 2s and an inner ring raceway 4s which are formed continuously on facing surfaces of both the raceway rings 2, 4, respectively, along a circumferential direction, at least either of the raceway rings 2, 4 having a connecting flange 12a or a mounting flange 12a at which the raceway ring is mounted on the vehicle body or the wheel, wherein both the raceway rings 2, 4 are formed entirely through cold forging with no machining given to a surface of the flange 2a, 12a, while a quenching and tempering treatment by electromagnetic induction and grinding are given to at least the outer ring raceway 2s and the outer ring raceway 4s.
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