An accurate diagnosis of bearing failure is imperative to prevent recurrence of the failures and additional costs. Bearings are high precision elements of the machines, which are in a variety of applications. Usually they are very reliable, even in the most adverse conditions.
Under normal operating conditions, the bearings have a very long service life, which can be expressed in terms of time or number of cycles before the rolling element or the inner or outer tracks to fatigue or fail.
According to investigations, less than 1 percent of the bearings do reach their expected service life.