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US09033584B2 Rolling bearing 有权
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Rolling bearing
摘要:
At least the surfaces of rolling elements of a rolling bearing are each randomly formed with an innumerable number of microconcave-like pits. The surface roughness parameter Ryni of the surfaces provided with the pits is in a range of 0.4 to 1.0 μm, and the Sk value is −1.6 or below.
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