When disassembling the SKF bearing for inspection, first record the appearance of the SKF bearing, confirm the residual amount of the lubricant, and then wash the bearing after sampling the lubricant for inspection. As a cleaning agent, gasoline and kerosene are commonly used.
The cleaning of the removed imported
bearings is divided into coarse cleaning and fine fine washing. In the container, the metal mesh bottom is placed first, so that the SKF bearing does not directly contact the container. In the case of rough cleaning, if the SKF bearing is rotated with dirt, it will damage the rolling surface of the bearing and should be taken care of. In the rough cleaning oil, use a brush to remove the grease and the adhesive. After it is almost clean, it is transferred to the fine wash.
Fine washing is to carefully clean the SKF bearing while rotating it in the cleaning oil. In addition, the cleaning oil should always be kept clean.
In order to judge whether the disassembled SKF bearing can be reused, it is necessary to check after the bearing is cleaned, carefully check the raceway surface, the rolling surface, the state of the mating surface, the wear of the cage, the increase of the SKF bearing clearance and whether there is any Damage and abnormality with reduced dimensional accuracy. For non-separable ball bearings, use one hand to support the inner ring and rotate the outer ring to check if it is smooth.
Separate SKF bearings such as tapered roller bearings can be inspected separately for the rolling surfaces of the rolling elements and the outer ring. Large imported bearings can not be rotated by hand. Pay attention to the appearance of rolling elements, raceways, cages, ribs, etc. The higher the importance of SKF bearings, the more careful inspection is required.
Once the final load is determined for the required load rating, you must consider the dimensions required for the SKF bearing installation, including the installation and fixing of the SKF bearings considered here. And the size of the shaft that matches the bearing with the required rated load. These factors help to determine the bearing structure and size, and can also exclude certain types of imported bearings. In some cases, the choice is excluded due to space constraints even before the rated load is determined.
For example, if SKF bearings are very narrow in shape, ball
bearings are the only type that can be used here. Alternatively, if a bearing housing with a very small diameter must be used, you will need to install two or more roller bearings on the same shaft to achieve a sufficient rated load.
Another common contradiction arises when the size of the shaft is significantly different from the required load rating of the SKF bearing. If the shaft is large but the load is light, even if the required rated load is small, an expensive SKAR bearing with high rated load must be proposed. In this case, it is better to contact the bearing manufacturer in order to propose the most cost-effective The solution.
