Patent ID: 6655847
Filing Date: 2003-12-02
Classification: F16C,F16D,G11B

Abstract:
A pivot bearing assembly comprising:a shaft having one end portion and an other end portion, said other end portion having an outer periphery and forming a cylindrical main body and said one end portion having an outer periphery and being coaxial with said cylindrical main body and forming a cylindrical reduced portion; first inner ring means disposed on said outer periphery of said reduced portion; second inner ring means integrally formed in said outer periphery of said main body; outer ring means having an outer periphery and coaxially surrounding said first and second inner ring means and extending from said one end portion of said shaft to said other end portion of said shaft; rolling elements rollably arranged between said first ring means and said outer ring means and between said second ring means and said outer ring means; and a tolerance ring mounted on said outer periphery of said outer ring means, wherein said outer ring means comprises an outer ring portion extending from said one end portion of said shaft to said other end portion of said shaft and coaxially surrounding said shaft and a sleeve portion surrounding said outer ring portion, said sleeve means supporting said tolerance ring, wherein said sleeve portion has an outer periphery, and receiving means for receiving said tolerance ring is formed in said outer periphery of said sleeve portion, and wherein said tolerance ring has lateral end portions, said sleeve portion has one end portion and the other end portion, and said receiving means comprises annular grooves formed in said one end portion and said other end portion of said sleeve portion for receiving said lateral end portions of said tolerance ring.