Deep groove ball bearings are the most widely used type of bearing, especially with multiple functions. This type of bearing has the characteristic of low friction, and after optimization, it can reduce noise and vibration, thereby achieving high speed. Capable of withstanding radial loads and axial loads in both directions, easy to install, and requiring less maintenance compared to other types of bearings. Deep groove ball bearings are mainly used to withstand radial loads, but are also commonly used to withstand combined radial and axial loads. Especially when the speed of mechanical equipment is very high and thrust bearings are not suitable, this bearing can be used to withstand bidirectional pure axial loads and does not require maintenance during operation. It is a low-cost and widely used type of bearing.