A vehicle wheel bearing apparatus has an outer member, an inner member, double row rolling elements, and seals. At least one seal of the seals has a metal core press-formed from steel sheet with a cylindrical fitting portion. A radial portion extends radially inward from the end of the fitting portion. A sealing member with a plurality of sealing lips is integrally adhered to the fitting portion of the metal core. Bearing grease is contained within the bearing. Sealing grease is applied to the sealing lips. Both the bearing grease and the sealing grease use the same thickener and the worked penetration of 350 or less. The kinematic viscosity of the base oil of the sealing grease at 40° C. is set to 70% or less of the kinematic viscosity of the base oil of the bearing grease at 40° C.


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    Title :

    Wheel bearing apparatus for a vehicle


    Contributors:

    Publication date :

    2017-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / C10M LUBRICATING COMPOSITIONS , Schmiermittelzusammensetzungen / F16C SHAFTS , Wellen / F16J Kolben , PISTONS



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