How do ball and roller bearings work? Types and durability calculation. DIN ISO 281

• Find out more about our project: • Here are some products installed by our technicians: Bearings are used to reduce the friction between two objects that are in linear or circular motion against each other. The first intuition came from Leonardo Da Vinci in his studies regarding friction. But the first patent was filed only in 1794 by Philip Vaughan of Carmarthen. Then, a Parisian bicycle mechanic named Jules Suriray, was able to patent the first ball bearing on August 3rd 1869. This invention allows him to win the first cycling race in history: the Paris-Rouen race. Now let’s take a closer look at a classical ball bearing. By decomposing and sectioning it, its components can be analysed. The first elements that immediately get our attention are the steel balls. They represent the rolling elements, and they’re held together by a cage which can come in different shapes and it’s made