Bearings
Rolling bearings include an outer ring, rolling elements, and an inner ring. These components are mostly made of bearing steel or a corrosion-resistant steel grade. As rolling elements, balls, needles, cylindrical rollers or spherical rollers can be used. The contact surfaces should have a low roughness to minimize friction and heating. In addition, the bearings are greased to prevent metallic contact and sealed to protect against contamination. Application areas are usually applications with fast rotational movements and that require a low starting friction torque. Known specifications include, for example, EN 3284 or AS 27645.