Patent ID: 8628250
Filing Date: 2014-01-14
Classification: F16C

Abstract:
1. A support device of a propeller shaft, comprising: an annular bracket adapted to be fixed to a floor member of a vehicle body; an annular elastic member in the annular bracket; an annular supporting structure in the annular elastic member and rotatably supporting a cylindrical given portion of the propeller shaft through a ball bearing unit; first and second annular seal members in front and rear annular spaces, respectively, that are at front and rear sides of the ball bearing unit and between the annular supporting structure and the cylindrical given portion; annular dust covers disposed on front and rear sides of an outer cylindrical surface of the cylindrical given portion with respect to the ball bearing unit, each of the annular dust covers being constructed and arranged to prevent direct attack of dust against the ball bearing unit; first and second cylindrical rust-proofing members disposed on the front and rear sides of the outer cylindrical surface of the cylindrical given portion with respect to the ball bearing unit; and an annular plate disposed between an inwardly bent annular flange portion of at least one of the first and second cylindrical rust-proofing members and one axial end of the ball bearing unit, wherein inner cylindrical surfaces of the first and second annular seal members slidably contact the first and second cylindrical rust-proofing members, respectively, wherein each of the first and second cylindrical rust-proofing members extends toward the one axial end of the ball bearing unit, with an engaging portion that includes the inwardly bent annular flange portion put between a flat wall of the cylindrical given portion and the one axial end of the ball bearing unit, and wherein each of the first and second cylindrical rust-proofing members is disposed on a first portion of the cylindrical given portion, the first portion of the cylindrical given portion having a diameter that is less than a diameter of a second portion of the cylindrical given portion.