CPC F16C 3/08 (2013.01) [B24B 5/42 (2013.01); B24B 21/02 (2013.01)] | 2 Claims |
1. A crankshaft comprising:
a journal; and
a pin,
each of the journal and pin having such a surface geometry that an arithmetical mean height of a primary profile, Pa, is 0.090 μm or smaller and a reduced peak height Rpk is 0.070 μm or smaller,
wherein the arithmetical mean height of a primary profile Pa is defined in JIS B 0601 (2001), and the reduced peak height Rpk is defined in JIS B 0671 (2002).
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