Miniature Bearings - Four Ways to "Extend Life"

How small are miniature bearings?

It refers to single row deep groove ball bearings with an inner diameter within 10 mm.

So where can it be applied?

Miniature bearings are suitable for various types of industrial equipment, small rotary motors and other high-speed and low-noise fields, such as: office equipment, micro motors, instrumentation, laser engraving, small watches, soft drives, pressure rotors, dental drills, hard disk motors , stepper motors, video recorder drums, toy models, computer cooling fans, money counters, fax machines and other related fields.

The manufacturing process of micro bearings is more precise than that of ordinary bearings, and the cost of long-term replacement of micro bearings is relatively high. So how to extend the service life of micro bearings? Xiaoyun, who has many years of experience in the production of miniature bearings, has summarized the following four key points for you.

Correct installation of miniature bearings is important

Whether the installation process of micro bearings is correct affects the accuracy, life, performance and other aspects of micro bearings. Correct installation of bearings requires that the design and assembly department have sufficient research and rich practical experience on the installation process of miniature bearings. At the same time, the production operation department must perform installation according to operating standards.

Specific work standard items usually include the following:

1. Cleaning, the bearing and bearing-related parts must be carefully cleaned before the bearing is installed.

2. Check whether the size of related components and the finishing of supporting parts meet the process requirements.

3. After installation, you must check the bearing lubricant and whether the basic operating conditions of the bearing are normal.

4. During the use of micro bearings, external conditions must be monitored, such as temperature, vibration and noise.

If the above standards are carried out as required, it will help extend the service life of micro bearings. Regular security inspections will help detect potential problems early, prevent unexpected phenomena in the machine, allow the production plan to be realized, and improve factory productivity and efficiency.

Micro bearing cleaning method

The surface of the miniature bearing will be coated with anti-rust oil. When using it, we must clean it carefully with clean gasoline or kerosene, and then apply clean, high-quality or high-speed and high-temperature lubricating grease before installation and use. The reason for this is simple, because cleanliness has a great impact on the life and vibration noise of micro bearings. But Xiaoyun reminds me that fully enclosed bearings do not need to be cleaned and refueled.

Miniature Bearing Grease Selection

Since grease is made of base oil, thickeners and additives, the performance of different types of grease and different brands of the same type of grease vary greatly, and the allowable rotation limits are different. Be sure to pay attention when selecting.

But here Xiaoyun briefly introduces to you the general principles of selecting grease:

The performance of grease is mainly determined by the base oil. Generally, low-viscosity base oils are suitable for low temperatures and high speeds; high-viscosity base oils are suitable for high temperatures and high loads. The thickener is also related to the lubrication performance, and the water resistance of the thickener determines the water resistance of the grease. In principle, greases of different brands cannot be mixed, and even greases with the same thickener will have bad effects on each other due to different additives. When lubricating miniature bearings, it is a common misconception that the more grease the better.

Relubrication of miniature bearings

Re-lubrication of bearings During operation, miniature bearings require correct re-lubrication to perfect their performance. Miniature bearing lubrication methods are divided into grease lubrication and oil lubrication. In order for the bearing to function well, first of all, it is necessary to choose a lubrication method suitable for the use conditions and purpose of use. If only lubrication is considered, the lubricity of oil lubrication is dominant. But grease lubricants have the advantage of simplifying the structure around the bearing.