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SKF bearings coated with antirust oil, you have to carefully clean with clean gasoline or kerosene, then coated with clean high quality or high temperature lubricant for installation. Cleaner for micro-vibration and noise of bearing life and the impact is very large. But we want to remind you is: cleaning sealed bearings do not require oiling. How to choose the operation and service life of the grease-lubricated bearings have a very important impact. General principles here to brief you on the choice of grease. Grease is made of base oils, thickeners and additives, different types and different brands of same kind of grease performance varies widely, allows limiting the rotation of different options it is important to note.
Grease performance mainly decided by the base oil. Low viscosity base oil suitable for low temperature, high speed, high viscosity suitable for high-temperature, high-load. Bearing lubrication performance thickening agent, thickening agent for water resistance water resistance of decides to grease. In principle, the different brand of lubricant cannot be mixed, and, even if it is the same the grease thickener, also brings bad influence because of different additives. When the lubrication SKF bearings, grease, the more, the better? When lubricated miniature bearings, grease, the more the better, it is a common misconception.
1. bearing installation
The bearing is properly installed, affecting the accuracy, longevity, performance. Therefore, design and Assembly departments for SKF bearings are installed to fully study. Want to follow the standard installation. Standard project typically is as follows:
(1) clean bearing and related parts
(2) checking the size and finishing of correlative parts
(3) installation
(4) after you install the bearings inspection
(5) supply of lubricant
2. basic conditions of bearing monitor
During use, always on SKF bearings to run basic monitoring external conditions, such as temperature, vibration and noise measurement, and so on. These regular checks for early detection of potential problems and will prevent unexpected machine suspend, make the production a reality, improving factory productivity and efficiency.
3. again bearing lubrication
During the operation, SKF bearings require proper lubrication once again, perfect its performance. Miniature bearings lubrication method, divided into grease lubrication and oil lubrication. In order for the bearing play function very well, first of all, to select suitable for conditions of use, use of lubrication method. If you only consider the lubrication, lubricant oil lubrication of the dominant. Grease lubrication around bearing structure can be simplified like that.
4. uninstall of bearing
When the bearing will reach its final term when it should be replaced.
Although SKF bearings can no longer be used, but properly removing the original bearings, replace new bearings in a timely manner, extending to new work can play a good role in promoting.
Bearings and bearing Interior too much grease will cause the excessive mixing of oil, resulting in an extremely high temperature. Install how to install and remove, not just hammering the bearing face and not the side, installation tools, blocks, Sockets or other force acting on micro-bearings evenly. If the mounting surface coated with lubricants, will make the installation more smooth. If combined with an interference fit larger bearings placed in mineral oil should be heated to 90~100℃ immediately after installation. Removal is difficult, we recommend that you use the removal tool to pull the inner circle on perfuse hot oil carefully, heat can make the SKF bearing inner ring expansion, thus making it easier for them to fall off.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 31321XU NTN | 105 | 225 | 53 |
| 30321 NTN | 105 | 225 | 49 |