he Different Structure Forms of Single Row Angular Contact Ball Bearing

An angular contact ball bearing is composed of a outer-circle, inner circle, steel ball and retainer. It can not only support the radial load and axial load but also it can only sustain the axial load.  micro ball bearing Besides, it can operate stably with a relatively high speed. According to the row, the angular contact ball bearing can be classified into single row one and two-row one. Here the article will mainly introduce the single row angular contact ball bearing.

The so-called single row angular contact ball bearing can only support one directional axial load. When it supports the pure radial load, it will bring about the inner axial thrust load because the action line of the roller loading is not in the same radial face with the action line of the radial load. So this bearing should be set up in pair.

At present there are several popular structure forms for the single row angular contact ball bearing. They will be introduced as follow. What comes first is separated angular contact ball bearing. The code for this bearing is S70000. There is no locking notch on the raceway of the outer-circle. So the inner circle, retainer and steel ball can be separated from it. On basis of the feature, these fittings can be installed respectively. For this structure, the inner diameter of the bearing is less than 10mm. it belongs to mini-bearing. In the common situation, the separated angular contact ball bearing is widely used in the equipments with high requirements for the dynamic balance, noisy, vibration and stability such as gyro wheel, micro motor. The next one is inseparable angular contact ball bearing.

There is a locking notch in the raceway of circle. So the two sets of circles can not be separated. According to the contact angle, this bearing can be separated into three subtypes. When the angle of contact is about 40°, the bearing is applicable for the relatively big axial load. When the angle is about 25°, the bearing is suitable for precision principle bearing. When the angle is 15°, the bearing is used for the precision bearing with big sizes. The third one is pair configuration angular contact ball bearing. The type is used to bear the radial load and axial load at the same time and also can bear the pure radial load or any directional axial load. For this bearing, there are three different configuration types. One is back-to-back configuration, which has a good rigidity and good property for bearing torque. One is face-to-face configuration, whose rigidity and bearing ability is not better than the front one. The last one is connection configuration. Through this configuration, the bearing can connect more than three bearing at the bearing point, but it can only one directional axial load.