ABEC 9
The classification ABEC stands for Annular Bearing Engineers Committee and classifies how fine the rolling bodies (the balls in the bearings) are worked out. In other words, the higher the ABEC level, the more precise the production. ABEC 9 bearings have consistent running characteristics such as good smoothness and smooth rotation of the rolls. Thus, the power can be transferred efficiently when driving. However, it should be noted that the smooth running of a bearing is also influenced by other factors - such as the materials used for the various components of a bearing, as well as by the choice of lubricant.
