| 摘要 |
A rolling bearing 10 comprises races 11, 12 having a raceway 15, 16 and rolling elements 13 having a rolling contact surface, wherein at least the raceway 15, 16 of the races 11, 12 has a machined surface, and a surface layer 11 a , 12 a is formed on the machined surface by electrochemically or chemically dissolving the machined surface, whereby contamination is substantially reduced.
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