Importance

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Abstract

A propeller shaft includes a first hollow shaft coupled to a first joint so as to transmit motive power to the first joint, a second hollow shaft coupled to a second joint so as to transmit motive power to the second joint, and a partitioning wall dividing an inner space of an inward shaft into a lubrication oil retaining chamber and a vacant chamber. The second hollow shaft is fitted to the first hollow shaft in such a manner as to be non-rotatable relative to the first hollow shaft, and to be movable in a rotation axis direction of the first hollow shaft. The first hollow shaft and the second hollow shaft are configured such that lubrication oil is supplied to a fitted part, the inward shaft is one of the first hollow shaft and the second hollow shaft, and the inward shaft is inwardly fitted.

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First Claim