Maintenance and maintenance of ntn bearings ensure the reliability of operation, improve productivity and economy, prevent accidents, ensure operational reliability, improve productivity and economy, and ensure that joint bearings are good for a long time. The state maintains its original performance.
Cleaning of bearings: Gasoline and kerosene are commonly used as ordinary cleaning agents. When disassembling the ntn bearing for inspection, first record the appearance of the bearing, confirm the residual amount of the lubricant, and start the washing of the joint bearing after sampling the lubricant for inspection. The cleaning is divided into coarse cleaning and fine cleaning, respectively, placed in the container, first placed on the bottom of the metal mesh, so that the bearing does not directly contact the container of dirt.
1. In the process of using bearings, regular cleaning is very important. How to clean the bearings accurately? When the joint bearing is first removed for inspection, first use the method of photography to make a good appearance record. Also, verify the amount of lubricant remaining and sample the lubricant before cleaning the bearings.
2. The cleaning of the ntn bearing is divided into rough washing and fine washing, and the metal mesh frame can be placed on the bottom of the used container.
3. When rough washing, clean the grease or adhesive with a brush on the top of the oil. At this time, if the joint bearing is transferred in the oil, the rolling surface is damaged by the foreign matter.
4. When fine washing, slowly shifting the bearing in the oil, it must be forced to stop.
5. The cleaning agent used on weekdays is neutral non-aqueous diesel or petroleum, and sometimes uses warm alkaline liquid according to demand. Regardless of which cleaning agent is used, it is often necessary to filter and clean the cockroach.
6. Immediately after cleaning, apply anti-rust oil or anti-rust grease to the joint bearing.
Inspection and judgment of ntn bearing: In order to judge whether the removed bearing can be used, it should be checked after the bearing is cleaned.
The inspection contents include: monitoring the operating status, replenishing and replacing the lubricant, and checking the periodic disassembly. This is the operating standard for maintaining the best mechanical operating conditions and is carried out regularly. As a maintenance item during operation, there are rotating sound, vibration, temperature, and lubricant status, and separate bearings such as joint bearings can be inspected for the rolling surfaces of the rolling elements and the outer ring.
Check the condition of the raceway surface, the rolling surface, the mating surface, the wear of the cage, the increase of the ntn bearing clearance, and the damage abnormality with irrelevant dimensional accuracy. For non-separable miniature ball bearings, use one hand to support the inner ring horizontally, and rotate the outer ring to confirm whether the large bearing cannot be rotated by hand. Pay attention to the appearance of the rolling element, raceway surface, cage, rib surface, etc. The higher the importance of the bearing, the more careful it is necessary to check.
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