A protective cover (1) having a reliable sensor holder part (3B) that prevents reduction in air tightness and strength of a division wall (B) between a magnetic sensor (A) and a magnetic encoder (16). The protective cover (1) is press-fitted into an outer ring to seal one axial end portion of a bearing, and has the sensor holder part (3B) holding the magnetic sensor (A). In the protective cover (1), a disc-shaped member (3) has a thick part (6) formed as a flow path for preferentially charging a molten resin into a thin part for forming the division wall (B) in a cavity of a molding die for use in injection molding between a position corresponding to a gate of the molding die and the division wall (B).


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    Title :

    Protective cover having sensor holder part, bearing device including the protective cover, and method for manufacturing protective cover having sensor holder part


    Contributors:

    Publication date :

    2019-04-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS / B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16C SHAFTS , Wellen