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Cracks and fractures

Cracks and fractures are not only extremely annoying, they are also one of the most common types of rolling bearing damage. The reasons for such damage can often be found in insufficient lubrication or incorrect mounting of the rolling bearing. In this article, you will learn how crack and breakage damage occurs and which methods […]


This article (based on ISO 15243) is all about electro-erosion – but what is it? Electro-erosion is understood to be a local structural change and removal of material from the contact surface. This structural change is caused by damaging electrical currents. Electro-erosion is always the starting point for an increasing noise level of the machine […]


Have you ever heard of corrosion? Corrosion is basically divided into two main forms according to ISO 15243: Corrosion by moisture and fretting corrosion. Fretting corrosion can in turn be divided into fretting corrosion and false brinelling. The most common type is probably corrosion caused by moisture. This occurs as a result of a chemical […]

Plastic deformation

You may have already learned interesting facts about damage types such as fatigue damage or wear in our other articles. This article concerns another type of damage: Plastic deformation. Plastic deformation can be defined as permanent deformation caused by exceeding the yield point. This can usually happen in two different ways: Overload Particle indentations  Overload […]


Rolling bearings, like other mechanical components, encounter problems such as wear. Wear describes the progressive removal of material from surfaces and is caused by two contact surfaces acting on each other during operation.   In rolling bearings, “wear“ can refer to various components such as worn raceway surfaces, cages, guide lips, rolling elements and seals. A […]

Fatigue damage

If a rolling bearing “packs up” after some time despite correct bearing selection, lubrication and handling, it is very likely to be fatigue damage. Fatigue damage occurs when the fatigue life of a rolling bearing has been reached. Even with greater loads, the occurrence of classic fatigue damage is possible after a certain period. Nevertheless, […]

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