Where is the starting point for the design of angular contact ball bearings? When launching a new product, the first thing to do is design. Only with a feasible design scheme can the operation be compared. This is how it is obtained. Since this is a kind of equipment component, when designing it, it generally pays more attention to practicality, so that its value can be reflected. When starting the design of angular contact ball bearing, it is necessary to clarify the function of the bearing to meet the application under high speed and heavy load, and at the same time reduce friction. For this purpose, we have designed different types of bearings, each of which has this peculiarity.