(57) Abstract Objective Not only axial direction in the pressing in spline lapAt the same time to be easy to register even in direction the pressing in spline quick, definiteOffering supurainhuitsuteingu which can do trulyDo. Constitution Male spline 1 to be formed by the external surface of the axis, saidWith the male spline and pressing in, is fit the female spline which pu -Being formed by the hole of ri, and the like in supurainhuitsuteingu which becomesPutting, as for aforementioned male spline 1 in the destal of the material of the orbicular cylinder shapeForming chamfer 10, to form with rolling, at the same time said supuraiCrevice 13 is formed to the chamfer of the thread portion 11 destal of n when alsoExcess part 14 to be formed by the both sides of the said crevice 13, in addition beforeIn destal of description female spline chamfer of aforementioned male splineThe chamfer which coincides being formed, supu which features that it becomesrainhuitsuteingu.
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