Mechanical failure can be classified in many ways very much, today we are saying is that according to the situation seen failure classification, failure can be divided into functional failures and potential failures.

   1. Malfunctions mechanical products lost their working ability or the ability to work decreased significantly, which lost its function, so called functional fault. Such failures can be the operator's experience or the determination of its output parameters to judge them. The key part is broken, mechanical root workers unable to work, are functional failures; productivity less than the required targets, but also with the functional failures. This failure is real, and therefore also called the actual fault.

   2. Potential failure and gradual failure is linked, when the fault in the progressive development, but has not yet shown in the functional areas, while at the same time close to the stage of germination, when this situation can be diagnosed, that is considered to be a fault phenomena , and is called latent failures. For example, the components in the fatigue damage process, the crack depth is gradually extended, while its depth and can be detectable. When it detects the depth of crack propagation is close to the critical value allowed, they think that there is a potential failure, must be the same as the actual failure to deal with.

    Proved the potential of mechanical failure, it is possible to achieve functional fault in the machinery before the exclusion, which is conducive to maintaining good mechanical condition to avoid malfunctions that may be as a result of adverse consequences, the use of mechanical maintenance of practical importance significance.

    Mechanical failure is a great danger, so manufacturers need to malfunctions did not come before the best preventive measures against potential failure, so that the accident rate dropped to the lowest!