Angular contact ball bearings are a common type of bearing that can withstand both radial and axial loads, as well as pure axial loads. Their axial load capacity is determined by the contact angle and increases with the increase of the contact angle. They have been widely used due to their advantages such as high speed, high accuracy, and low noise. Below, let me introduce the characteristics and applications of angular contact ball bearings!
Characteristics of Angular Contact Ball Bearings
Angular contact ball bearings are widely used bearings, which have superior ability to withstand axial loads and are more suitable for high-speed operation situations. The axial load carrying capacity of angular contact ball bearings is related to the contact angle. The larger the contact angle, the greater the axial load that can be carried, and the size of the contact angle is controlled by the radial clearance of the bearing. Below, we will mainly discuss the structural characteristics of angular contact ball bearings:
1. Unique structure
The shape of the angular contact ball bearing is similar to that of the Deep Groove Ball Bearing. One ring has only one rib, and the other side is a slope. Unlike Deep Groove Ball Bearing, there are more cages and assembled steel balls.
2. Excellent components
The cages used in angular contact ball bearings include iron cages, copper cages, aluminum alloy cages, and plastic cages in terms of material. The retainers are either solid or stamped in shape and do not require rivets.
3. High speed
The higher rotational speed of angular contact ball bearings refers to the limit value that does not generate frictional heat that causes burns and can rotate continuously, which is higher than other types of bearings of the same size.
4. Bidirectional load
In addition to being able to withstand radial loads, it can also withstand large unidirectional axial loads, and its axial load capacity is determined by the contact angle and increases with the increase of the contact angle.
5. Paired use
Generally, angular contact ball bearings are used in pairs because they can make the outer rings of a pair of bearings face each other, that is, the wide end face is opposite to the wide end face, and the narrow end face is opposite to the narrow end face. This can avoid causing additional axial forces and limit the shaft or casing to within the axial clearance range in both directions.
6. Excellent accuracy
During operation, angular contact ball bearings can eliminate internal clearance due to the axial load after installation, which also relatively improves the rotational accuracy of angular contact ball bearings.
7. High bearing capacity
When angular contact ball bearings are used in pairs, they can withstand bidirectional axial loads and increase the bearing capacity of unilateral axial loads.
8. Good rigidity
Due to the existence of clearance in angular contact ball bearings, the inner and outer rings must move relative under load, which will reduce the rigidity of the bearing. In order to reduce vibration, preloading is often used to eliminate the original clearance when installing angular contact ball bearings, which can achieve greater rigidity and maintain the original accuracy characteristics for a long time.
Application of Angular Contact Ball Bearings
In terms of application, we are not limited to the general requirements of angular contact ball bearings. With the development of angular contact ball bearings, the particularity and personalized development of angular contact ball bearings will become increasingly prominent, and the application range of angular contact ball bearings will become wider. Common angular contact ball bearings include single row angular contact ball bearings and double row angular contact ball bearings. Let's take a look at their application range below.
1. Single row angular contact ball bearing
Single row angular contact ball bearings can only withstand axial loads in one direction, which will cause additional axial forces when subjected to radial loads. And can only limit the axial displacement of the shaft or shell in one direction. Mainly used in machine tool spindles, high-frequency motors, gas turbines, centrifugal separators, small car front wheels, differential pinion shafts, booster pumps, drilling platforms, food machinery, indexing heads, repair welding machines, low noise cooling towers, electromechanical equipment, coating equipment, machine tool slots, and arc welding machines.
2. Double row angular contact ball bearing
If installed in pairs, make the outer rings of a pair of bearings face each other, that is, the wide end faces the wide end face and the narrow end faces the narrow end face. This can avoid causing additional axial forces and limit the shaft or casing to within the axial clearance range in both directions. Mainly used in oil pumps, Roots blowers, air compressors, various transmissions, fuel injection pumps, printing machinery, planetary reducers, extraction equipment, cycloidal reducers, food packaging machinery, electric welding machines, electric soldering irons, square boxes, gravity spray guns, wire stripping machines, half shafts, inspection and analysis equipment, and fine chemical machinery.