Rated load and life of bearing dynamic load and life The basic dynamic load rating of C is used to calculate the bearing in the dynamic stress, namely a rotation in loading state of bearing. The numerical representation according to the ISO 281:1990 standard, bearing load to provide basic rating life 1000000. It is assumed that the load is constant in magnitude and direction, the radial bearing radial load, thrust bearing for axial loads acting on the center. Basic rated SKF bearing dynamic load method stipulated according to the ISO 281:1990 standard to determine. Load ratings given in this catalogue is suitable for heat treatment to a minimum hardness of 58HRC, and operating under normal conditions of chrome steel bearing. SKF Explorer bearing that among other things, also includes measures adopted SKF in material and manufacturing technology, and according to the ISO 281:1990 standard, using the modified coefficient to calculate the basic dynamic load rating.