The line connecting the steel balls of angular contact ball bearings to the contact points of the inner and outer rings forms an Angle with the radial plane, which can withstand radial and unidirectional axial loads. When radial loads are applied, axial component forces are derived. Therefore, angular contact ball bearings are generally used in pairs and opposite directions. Common types include single-row and combined angular contact ball bearings, double-row angular contact ball bearings, and four-point contact ball bearings.
Bearings need to meet the requirements of high temperature, high speed, low vibration, high pollution, insufficient lubrication, high reliability and long service life. It is mainly applied in precision turbo molecular pumps, dry pumps and other fields.
Ball bearing technology is widely applied, and it can be used in almost any size and kind of turbochargers. Also, turbochargers need to work at high speeds, around 200,000-300,000 rpm, and in high-temperature environment, which has extremely high requirements for the reliability and stability of ball bearings.
Fluid dynamic bearing is a brand-new type of bearing. It is a sliding bearing that separates two friction surfaces and bears loads by a liquid film formed by the dynamic pressure of a liquid lubricant.
The supporting bearings for the spindles of precision machine tools are mainly selected based on stiffness and rotational speed. And then, there are other factors are considered as needed, such us load-bearing capacity, vibration resistance, noise, and so on.
Deep groove ball bearing can withstand radial loads, bidirectional axial loads or a combination of these, which is the most widely used type of rolling bearing. In addition to the basic open type, it also includes sealed types filled with grease inside, double-sided metal dust cover type or double-sided rubber sealed type bearings), types with flanges on the outer ring and types with stop grooves on the outer ring, etc.
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