Precision angular contact ball bearings

In the several bearings to precision angular contact ball bearings most widely used. We all know that angular contact ball bearing rolling body is ball; because it is a point contact (as opposed to line contact roller bearings), so it can provide higher speeds, less heat and higher rotational accuracy. In some super-high-speed spindle applications, but also the use of ceramic balls (typically Si3N4 or Al2O3) hybrid bearings. Compared with the traditional full hardenability ball, ceramic ball material itself characteristic gives ceramic ball bearings with high stiffness, high speed, high temperature, long life, to meet customer demand for high-end products bearing the machine.
On angular contact ball bearing contact angle, the more popular 15 and 25 of the contact angle;???? 15, the contact angle is usually a relatively high speed performance, while 25 of the contact angle with high axial carrying capacity. Due to the impact of the choice of pre-loaded precision angular contact ball bearing applications is very large, for example, in high load, high rigidity of the occasion, the general will choose medium or heavy Bearing manufacturing machine preload; and for some high-speed, high-precision applications We in the early selection of the bearing, need to pay attention to choose the right pre-load, general light preload more common. Preload generally divided into light, medium and heavy three; in order to facilitate the customer's use, now several major bearing manufacturer in the world are generally available previously ground bearing end faces plus preloaded bearing, which is what we usually refer to the universal matching precision angular contact ball bearings form. This kind of Wind turbine bearing preload adjustment eliminates the customers, thus saving installation time.