Angular contact ball bearings always attract people’s attention because they can be used for various requirements. They can support unilateral axial loads if they are designed for radial loads. For radial loads and the resulting axial force component, they are usually used in a duplex arrangement.
What is the contact angle? It is defined as the angle formed by the perpendicular line with the axes of the bearings and the line connecting the base plates and the contact of the rolling track. The load-carrying capacity of the axial load is determined by it, the larger the contact angle, the higher the load-carrying capacity of the axial load.
Angular contact ball bearings can be further divided into different types. Single row angular contact ball bearings can combine axial and radial load, but the radial load takes the main part at the same time. They can also bear pure radial load, except tandem type, configuration the other two types of configuration, both of which can bear the axial load from any direction. While they bear a radial load, they can also cause an additional axial force. Therefore, we must use bearings in pairs, and make random partnership combined bearings.
Single row angular contact ball bearings have various types of design. The non-contact type is one of them. The sleeve channels of these bearings have a front shaft, so two sleeves cannot separated. According to the contact angle, they can divided into 3 types. The first type has a contact angle of 40°, which is suitable to bear a larger axial load. The second type has a contact angle of 25°, which is mainly use for precision main shaft bearings. The third type has a contact angle of 15°, which is mainly use for larger precision bearings.
In addition, the type of divergence is also very important. Generally, there is no front shaft in the outer track rolling nest, and it can separated with the inner track, holder, and steel balls, so it can installed separately. This kind of bearing is usually a mini bearing whose inner diameter is less than 10mm. And they are use in peg-top rotors, tiny electric motors, and so on. Such devices have a high requirement of dynamic balance, noise, vibration, and stability.
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