Abstract: A deep groove ball bearing includes an outer ring, an inner ring, a retainer and steel balls, where the retainer is disposed between the outer ring and the inner ring, sockets are disposed on the retainer, the steel balls are disposed in the sockets, the retainer is formed by two retainer bodies which are separated from each other, grooves are formed in the retainer bodies at intervals, the grooves in one retainer body are combined with the grooves in the other retainer body to form the sockets, each retainer body is provided with a plurality of sub-connectors which are separated from each other, a first connecting block and a second connecting block are formed at two ends of each sub-connector respectively, two grooves are formed in each sub-connector, and a positioning table is disposed between the two grooves in each sub-connector.

Abstract: A deep groove ball bearing includes an outer ring, an inner ring, a cage, and steel balls. The cage is provided between the outer ring and the inner ring. Pockets are formed in the cage, and the steel balls are placed in the pockets. The cage is split into an upper cage body and a lower cage body. Pocket grooves are formed alternately in each of the upper cage body and the lower cage body. A connecting portion is provided between adjacent pocket grooves in the upper cage body. A positioning portion is provided between adjacent pocket grooves in the lower cage body. An insertion piece and an insertion groove are provided between the connecting portion and the positioning portion. The insertion piece and the insertion groove are configured to be fixed with each other to form a fixed connection between the upper cage body and the lower cage body.

Abstract: A deep groove ball bearing includes an outer ring, an inner ring, a cage, and steel balls. The cage is provided between the outer ring and the inner ring. Pockets are formed in the cage, and the steel balls are placed in the pockets. The cage is split into an upper cage body and a lower cage body. Pocket grooves are formed alternately in each of the upper cage body and the lower cage body. A connecting portion is provided between adjacent pocket grooves in the upper cage body. A positioning portion is provided between adjacent pocket grooves in the lower cage body. An insertion piece and an insertion groove are provided between the connecting portion and the positioning portion. The insertion piece and the insertion groove are configured to be fixed with each other to form a fixed connection between the upper cage body and the lower cage body. A deep groove ball bearing includes an outer ring, an inner ring, a cage, and steel balls. The cage is provided between the outer ring and the inner ring.

Abstract: The present invention relates to an earphone, comprising an earphone body, an earphone cord, and a fixing member. The earphone body includes an earplug portion, a connecting portion, and a body portion. The fixing member shaped as a ring, and the middle portion of the ring includes a through hole. The fixing member includes a top wall located at an edge of the ring. The top wall is made of an elastic material. Among them, the connecting portion is connected to the earplug portion and the body portion. The connecting portion passes through the through hole and is fastened in the fixing member, and the fixing member and the connecting portion are members of the earphone that are placed in the cavitas conchae of the human ear. The beneficial effects of the present invention are that since the top wall of the fixing portion is made of a material that is susceptible to deformation, adaptive deformation is performed to match the different cavitas conchae, when subjected to the compression of the cavitas conchae.

Abstract: The present invention relates to an earphone cover and an earphone having the same. The earphone cover is used to be placed on the earphone, comprising a sleeve portion and a fixing portion for setting the earphone cover on the earphone. The fixing portion encloses the sleeve portion, and the sleeve portion penetrates the fixing portion. The fixing portion includes a first end portion and a second end portion opposite to the first end portion. When the earphone cover is built in the human ear, the first end portion and the second end portion are in contact with the ear bone to form at least three setting points. Thus, after the earphone cover is set on the earphone, the earphone cover and the ear bone form three fixed points when the earphone is fixed in the ear, then the earphone may be firmly fixed in the ear bone through the three fixed points, and hence is not easy to fall off.

Abstract: The present invention relates to an earphone cover and an earphone having the same. The earphone cover is used to be placed on the earphone, comprising a sleeve portion and a fixing portion for setting the earphone cover on the earphone. The fixing portion encloses the sleeve portion, and the sleeve portion penetrates the fixing portion. The fixing portion includes a first end portion and a second end portion opposite to the first end portion. When the earphone cover is built in the human ear, the first end portion and the second end portion are in contact with the ear bone to form at least three setting points. Thus, after the earphone cover is set on the earphone, the earphone cover and the ear bone form three fixed points when the earphone is fixed in the ear, then the earphone may be firmly fixed in the ear bone through the three fixed points, and hence is not easy to fall off.

Abstract: The present invention relates to an earphone, comprising an earphone body, an earphone cord, and a fixing member. The earphone body includes an earplug portion, a connecting portion, and a body portion. The fixing member shaped as a ring, and the middle portion of the ring includes a through hole. The fixing member includes a top wall located at an edge of the ring. The top wall is made of an elastic material. Among them, the connecting portion is connected to the earplug portion and the body portion. The connecting portion passes through the through hole and is fastened in the fixing member, and the fixing member and the connecting portion are members of the earphone that are placed in the cavitas conchae of the human ear. The beneficial effects of the present invention are that since the top wall of the fixing portion is made of a material that is susceptible to deformation, adaptive deformation is performed to match the different cavitas conchae, when subjected to the compression of the cavitas conchae.

Abstract: Methods for blocking autoreactive T cell-initiated destruction of tissues in a mammal are provided. In one embodiment, the methods involve administering an HAS/CD24 polypeptide or fragment thereof. In some embodiments, the polypeptide or fragment is glycosylated.

Abstract: Methods for blocking autoreactive T cell-initiated destruction of tissues in a mammal are provided. In one embodiment, the methods involve administering a pharmaceutical composition comprising an agent selected from a fusion protein comprising an HSA/CD24 polypeptide and a fusion protein comprising a biologically active fragment of an HSA/CD24 polypeptide. In some embodiments, the polypeptide or fragment is glycosylated.

Abstract: Methods of reducing autoreactive T cell-initiated destruction of tissues in a mammal, comprising administering to the mammal a CD24 dsRNAi molecule or a polynucleotide that encodes a CD24 dsRNAi molecule, wherein said molecule or polynucleotide is administered to the mammal by an ex vivo or in vivo procedure.

Abstract: Methods for blocking autoreactive T cell-initiated destruction of tissues in a mammal are provided. In one embodiment, the methods involve administering an anti-HAS/CD24 antibody.

Abstract: Methods for blocking autoreactive T cell-initiated destruction of tissues in a mammal are provided. In one embodiment, the methods involve administering an HAS/CD24 polypeptide or fragment thereof. In some embodiments, the polypeptide or fragment is glycosylated.

Abstract: Methods of reducing autoreactive T cell-initiated destruction of tissues in a mammal, comprising: administering to a mammal a CD24 antisense molecule or a polynucleotide coding for the same, wherein the CD24 antisense molecule or polynucleotide is administered to the mammal by an ex vivo or in vivo procedure.

Abstract: Methods for blocking autoreactive T cell-initiated destruction of tissues in a mammal are provided. In one embodiment, the method comprises administering a purified CD24 polypeptide, a fusion protein comprising such polypeptide, or a biologically active fragment of such polypeptide to a mammalian subject who is suspected of having or predisposed to having an autoimmune disease. In another embodiment, anti-CD24 antibody or anti-CD24 Fab fragments are administered to the subject. In another embodiment, the method comprises administering a CD24 antisense molecule, an expression vector encoding a CD24 antisense molecule, CD24 dsRNAi, or an expression vector encoding CD24 dsRNAi to the subject. The present invention also relates to isolated and purified CD24 fusion proteins employed in the present methods and to transgenic mice that express the human CD24 protein on their T cells and/or their vascular endothelial cells but do not express murine heat shock antigen on any cells.