Research and Testing Available to Purchase

Equipment, Programmes, Techniques and Projects. In many applications the rollers or balls together with the raceways of roller bearings are subject to high repetitive stresses and as a result may, after many million stress cycles, fail due to metal fatigue. Much attention has been given by the International Standards Organization (I.S.O.) to determining the fatigue life of ball and roller bearings and whilst it is not possible to expect that any one bearing will fail at its calculated life, it is possible to predict that a certain percentage of a group of identical bearings tested under identical load and operating conditions will exceed the calculated life. Furthermore, it has been established that the average life of all the bearings in a group so tested will exceed the calculated life by a considerable margin.