1. Basic knowledge of angular contact ball bearings
Angular contact ball bearings are a type of bearing that has the ability to withstand both radial and axial loads. This type of bearing is mainly composed of inner ring, outer ring, steel ball, cage and seal ring. The contact angle of the inner ring and outer ring can be adjusted according to different application requirements.
2. Explanation of angular contact ball bearing models
1. 70 series
The 70 series angular contact ball bearings are high-precision bearings with excellent performance in high-speed applications. This series of bearings is mainly divided into the following sub-models: 7000, 7200, 7300 and 7900. Among them, the 7000 and 7200 series bearings are mainly used for light load applications, while the 7300 and 7900 series bearings can withstand higher loads.
2. 72 series
The 72 series angular contact ball bearings have good rigidity and light weight, and perform well in high-speed and high-precision applications. This series of bearings is mainly divided into the following sub-models: 7200 and 7300. The contact angle of the 7200 series bearings is "C", while the contact angle of the 7300 series bearings is "AC".
3. 73 Series
The 73 series angular contact ball bearings have excellent rigidity and load-bearing capacity, suitable for high-speed and high-load applications. This series of bearings is mainly divided into the following sub-models: 7300 and 7400. The contact angle of the 7300 series bearings is "C", while the contact angle of the 7400 series bearings is "AC".
4. 718 Series
The 718 series angular contact ball bearings are a high-precision bearing that can be used for high-speed and high-precision applications. This series of bearings mainly has two models: 71800 and 71800AC.
5. 719 Series
The 719 series angular contact ball bearings are a high-precision bearing that can be used for high-speed and high-precision applications. This series of bearings is mainly divided into the following sub-models: 71900, 71901, 71902, 71903, 71904, 71905, 71906, 71907, 71908, 71909, 71910, 71911, 71912, 71913, 71914, 71915, 71916, 71917, 71918, 71919, 71920, 71921, 71922, 71924, 71926, 71928, 71930, 71932 and 71934.
III. Precautions for purchasing angular contact ball bearings
1. Select the appropriate contact angle according to application requirements.
2. Select the appropriate accuracy level, especially in high-speed and high-precision applications.
3. Select appropriate materials and sealing devices to adapt to different working environments.
4. When selecting, be sure to avoid using undersized bearings to ensure bearing life and work efficiency.
In short, the correct selection of angular contact ball bearings is crucial to improving the performance of mechanical equipment and extending the life of bearings.
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