| 摘要 |
The present invention is a bevel gear having a plurality of teeth ( 12 ) on an outside periphery thereof, each of both tooth flanks ( 13, 13 ) of each of the plurality of teeth ( 12 ) forming a crowning way with a bulge in a tooth trace direction, a generating line (P) of a standard pitch cone of each of the plurality of teeth ( 12 ) inclining with respect to an axial center (X, Y), wherein each of the tooth flanks ( 13 ) of the plurality of teeth ( 12 ) is formed into an arch shape, at least at a central portion thereof in the tooth trace direction.
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