Item Type: Deep Groove Ball Bearing Material: Bearing steel Package List 10 x Deep Groove Ball Bearing Please match the appropriate size before use. 1DURABILITY AND RESISTANCE TO DEFORMATION: Made of good quality bearing steel, which has durability and resistance to deformation under heavy loads 2BEAR CERTAIN AXIAL LOAD: Deep groove ball bearings are mainly used to bear radial load, but also can bear certain axial load 3MOST WIDELY USED: The light duty load has the most reasonable speed and is the most widely used bearing type 4IMPROVE EFFICIENCY: The rotation speed is uniform during operation, and works in coordination with the machine to improve efficiency 5LONG SERVICE LIFE: Possess uniform hardness, wear resistance and high temperature resistance, bring long service life