Direct the assembly mainly used to bear radial load, but also can withstand a certain degree of axial load, when the radial bearing clearance increased with the performance of angular contact ball bearings can bear large axial load. This kind of bearing friction, high limiting speed, size range and diverse. Solid durability, versatility and low noise operation, can operate at high speed and easy to install. Sealed single row deep groove ball bearings and another design, you can no longer lubrication and no maintenance. Single row ball with gaps and double-row ball bearings, suitable for heavy working conditions.