What are angular contact ball bearings? What is the difference between angular contact ball bearings

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Angular contact ball bearing is a bearing that can be subjected to radial load and axial load at the same time, I have seen in a ** called Mobei.com that the larger the contact angle of the angular contact ball bearing, the higher the axial load capacity. There are some more detailed articles out there, so if you are interested, you can browse them.

Angular contact ball bearings and tapered roller bearings are generally used in pairs, and there are two disadvantages: according to the different adjustments, installations and use occasions, there are the following two disadvantages.

The shafting system of the formal installation (the narrow end face of the outer ring is opposite) is simple in structure, easy to assemble and disassemble, and easy to adjust, but the heating elongation of the shaft will reduce the axial clearance of the bearing, and even get stuck.

The thermal expansion of the reversed (wide end face of the outer ring) shaft increases the axial clearance of the bearing. Moreover, the structure of reverse installation is more complex, and it is inconvenient to assemble and disassemble and adjust. Stiffness analysis of positive and reverse installation When the cantilever installation of transmission parts, the stiffness of the reverse shafting is higher than that of the formal shafting, because the pressure center distance of the bearing of the reverse Zheng Fu is larger, so that the reaction force, deformation of the bearing and the maximum bending moment and deformation of the shaft are smaller than that of the formal installation.

When the transmission part is between two bearings, the normal fitting reduces the distance between the pressure centers of the bearing and helps to improve the stiffness of the shaft, while the reverse mounting does the opposite. Therefore, the positive and reverse assembly of two angular contact ball bearings or tapered roller bearings should be considered according to the structure of the transmission parts (gears, worm gears) and shafts. And choose to use.

Reason: Single row angular contact ball bearings can only withstand axial loads in one direction, and when subjected to radial loads, additional axial forces will be induced. And only the axial displacement of the shaft or housing in one direction can be limited.

If it is installed in pairs, the outer rings of a pair of bearings are opposite, i.e., the wide end faces the wide end face and the narrow end faces the narrow end face. This avoids additional axial forces and limits the shaft or housing to axial clearance in both directions.

1. Angular contact ball bearings can bear radial load and axial load at the same time. Able to operate at higher speeds.

2. The larger the contact angle, the higher the axial bearing capacity.

3. The contact angle is the angle between the contact point connection line of the ball and the raceway in the radial plane and the perpendicular line of the bearing axis. High-precision and high-speed bearings typically take a 15-degree contact angle. Brother Chi.

4. Under the action of axial force, the contact angle will increase. There are raceways on the inner and outer rings of angular contact ball bearings, and the inner and outer rings can be moved along the axial direction of the bearing.

5. This kind of bearing is especially suitable for bearing compound filial piety load, that is, the load that acts radially and axial at the same time. The axial load bearing capacity of angular contact ball bearings increases with the increase of contact angle.

6. The contact angle is the angle between the contact line of the ball and the raceway in the radial plane and the vertical line of the bearing axis.

Single-row angular contact ball bearings: machine tool spindles, high-frequency motors, gas turbines, centrifugal separators, front wheels of small automobiles, differential pinion shafts, booster pumps, drilling platforms, food machinery, indexing heads, repair welding machines, low-noise cooling towers, mechanical and electrical equipment, coating equipment, machine tool groove plates, arc welding machines

Double row angular contact ball bearings: oil pumps, roots blowers, air compressors, various types of transmissions, fuel injection pumps, printing machinery, planetary reducers, extraction equipment, cycloidal reducers, food packaging machinery, electric welding machines, electric soldering iron distribution, square boxes, gravity spray guns, wire stripping machines, half shafts, inspection and analysis equipment, fine chemical machinery. Zen imitation fingers.