إجراء مقترح من مصر: المكونات الميكانيكية

The Ministerial Decree No. 246/2025 gives the producers and importers a six-month transitional period to abide by the Egyptian standard ES 3553 which specifies methods of calculating the basic dynamic load rating of rolling bearings within the size ranges shown in the relevant ISO publications, manufactured from contemporary, commonly used, high quality hardened bearing steel, in accordance with good manufacturing practice and basically of conventional design as regards the shape of rolling contact surfaces. It also specifies methods of calculating the basic rating life, which is the life associated with 90 % reliability, with commonly used high quality material, good manufacturing quality and with conventional operating conditions. In addition, it specifies methods of calculating the modified rating life, in which various reliabilities, lubrication condition, contaminated lubricant and fatigue load of the bearing are taken into account. Worth mentioning is that this standard adopts the technical content of ISO 281:2007 (confirmed in 2021).