| 摘要 |
In a metal ring for a metal belt of a belt type continuously variable transmission, a relationship is established between a compressive residual stress of a metal ring of an innermost layer imparted by a nitriding treatment and a free state radius of the metal ring nondimensionalized by a minimum winding radius. In the relationship, the sum of a compressive residual stress acting on the inner peripheral face of the metal ring, a compressive stress due to flexure and a contact stress does not exceed the elastic deformation limit of the metal ring. The maximum compressive stress of the metal ring does not become excessive, and an abrasion resistance of the surfaces of the metal ring is guaranteed.
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