How small is a miniature bearing?
It refers to a single row deep groove ball bearing with an inner diameter of less than 10 millimeters.
In what areas can it be applied?
Micro bearings are suitable for various industrial equipment, small rotary motors and other high-speed and low-noise fields, such as office equipment, micro motors, instruments, laser engraving, small clocks, soft drives, pressure rotors, dental drills, hard disk motors, stepper motors, camera drums, toy models, computer cooling fans, cash counting machines, fax machines and other related fields.
The manufacturing process of miniature bearings is more precise than ordinary bearings, and the cost of long-term replacement of miniature bearings is relatively high. So how to extend the service life of miniature bearings? As someone with years of experience in producing miniature bearings, Xiaoyun has summarized the following four key points for you
Proper installation of miniature bearings is crucial
Whether the installation process of micro bearings is correct affects the accuracy, service life, performance, and other aspects of micro bearings. The correct installation of bearings requires the design and assembly department to have sufficient research and rich practical experience in the installation process of micro bearings. And at the same time, the production operation department must install according to the operation standards.
The specific homework standard items are usually as follows:
1. Cleaning requires careful cleaning of the bearings and their associated components before installation
2. Check whether the dimensions of related components and the precision machining of supporting parts meet the process requirements
3. After installation, it is necessary to check whether the bearing lubricant and the basic operating conditions of the bearing are normal
4. During the use of miniature bearings, external conditions such as temperature, vibration, and noise should be monitored.
If the above standards are all carried out according to requirements, it is beneficial to extend the service life of micro bearings, and regular safety checks are conducive to early detection of potential problems, preventing unexpected phenomena in machines, enabling production plans to be realized, and improving factory productivity and efficiency.
Cleaning methods for miniature bearings
The surface of micro bearings will be coated with anti rust oil. When using them, we must carefully clean them with clean gasoline or kerosene, and then apply clean high-quality or high-speed high-temperature lubricating grease before installation and use. The reason for doing this is simple, because cleanliness has a significant impact on the lifespan and vibration noise of micro bearings. However, Xiaoyun would like to remind you that fully enclosed bearings do not require cleaning or oiling.
Selection of lubricating grease for micro bearings
Due to the fact that lubricating grease is made from base oil, thickeners, and additives, the performance of different types and grades of lubricating grease varies greatly, and the allowable rotation limits are also different. Therefore, it is important to pay attention to this when selecting.
But here we briefly introduce the general principles for choosing lubricating grease:
The performance of lubricating grease is mainly determined by the base oil. Generally, low viscosity base oils are suitable for low temperatures and high speeds; High viscosity is suitable for high temperatures and high loads. Thickener is also related to lubrication performance, and the water resistance of thickener determines the water resistance of lubricating grease. In principle, different brands of lubricating grease cannot be mixed, and even lubricating grease with the same thickener can have negative effects on each other due to different additives. It is a common misconception to apply as much grease as possible when lubricating micro bearings.
Re lubrication of micro bearings
Re lubrication of bearings During operation, micro bearings require correct re lubrication to achieve perfect performance. The lubrication methods for micro bearings are divided into grease lubrication and oil lubrication. In order for bearings to function well, the first step is to choose a lubrication method that is suitable for the usage conditions and purposes. If only lubrication is considered, the lubricity of oil lubrication has the advantage. But grease lubricating oil can simplify the structure around the bearing.