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TIMKEN bearing damage will inevitably occur during operation, if abnormal heat, vibration and noise suddenly increases phenomenon, indicating TIMKEN bearings may have been damaged, should be checked and analyze the reasons. Common failure modes are:
     A, indentation
    When outside material into durum TIMKEN bearing, and pressure between the body and the raceway, the surface indentations formed. Furthermore, excessive impact loads can also make local plastic deformation of the contact surface and a recess is formed. When the stationary bearing TIMKEN, even if the load is small, the vibration of the surrounding environment is also a uniform distribution of the pit formed in the raceway.
    B, wear
    When not TIMKEN bearing seal, so that dust or particulate material into TIMKEN bearings or poor lubrication, the contact surface will cause serious scratches or wear, and vibration and noise TIMKEN bearings increases.
   C, corrosion
    Water or acids, alkalis, salts and other invasive TIMKEN bearing lubricant selection or improper references TIMKEN bearings from corrosion, even minor rust precision bearings TIMKEN TIMKEN bearings also enable scrapped.
   D, cracks and breakage
    Material defects and improper heat treatment, with too much interference, improper combination of design, such as the bearing surface with grooves caused by stress concentration, the formation of cracks and broken rings.
    E, current corrosion
    Current through TIMKEN bearings, will produce a small spark, leading to the emergence of the contact surface pits partial annealing or black highlights. Serious cases into large pits will appear.
   F, the cage damage
    TIMKEN bearings, especially high-speed TIMKEN bearings, because the lack of lubricant, the retainer rings in contact with the body or produced at the wear, impact, and even lead to cage fracture.
  G, fatigue spalling
    In raceway or TIMKEN bearing surface due to the role of alternating load the contact surface of the metal surface was flaking, and gradually expand to form pits. If you continue to run, then peel off the area to form the area. Due to improper installation or tilted TIMKEN bearing centerline axis of the hole and other reasons in the local area make TIMKEN bearings to withstand greater loads and early fatigue damage.