In order to maintain the original performance of the TIMKEN bearing in a good condition for as long as possible, it is necessary to maintain, repair, and prevent accidents, ensure the reliability of operation, and improve productivity and economy. Maintenance is best carried out on a regular basis in accordance with the operating standards for the mechanical operating conditions. The content includes monitoring of operating conditions, replenishment or replacement of lubricants, and periodic disassembly inspections. As a maintenance item during operation, there are bearing rotation sound, vibration, temperature, lubricant state, and the like.
Bearing overhaul
Cleaning of the bearing: When disassembling the TIMKEN bearing, first record the appearance of the 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 bearings is divided into coarse cleaning and fine cleaning. They are placed in the container respectively, and the metal mesh bottom is placed first so that the bearing does not directly contact the container. In rough cleaning, if the bearing is rotated with dirt, it will damage the rolling surface of the bearing and should be noted. 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 bearing while rotating it in the cleaning oil. In addition, the cleaning oil should always be kept clean.
Inspection and judgment of TIMKEN bearings: In order to judge whether the removed bearings can be used, check the bearings after cleaning. Check the raceway surface, the rolling surface, the state of the mating surface, the wear of the cage, the increase of the bearing clearance, and the damage and abnormality that are irrelevant in dimensional accuracy. For non-separable miniature ball bearings, use one hand to support the inner ring horizontally and rotate the outer ring to check if it is smooth. Separate bearings such as tapered roller bearings can be inspected separately for the rolling surfaces of the rolling elements and the outer ring. Large bearings cannot be rotated by hand. Pay attention to the appearance of rolling elements, raceways, cages, and ribs. The higher the importance of bearings, the more careful inspection is required.
Lubricating oil: TIMKEN bearing high-performance grease protects the bearing and removes dirt and foreign matter inside the Palin.
Once the bearing has been dismantled, it will become easier to enter the sand than the original, the sand will stick to the lubricating oil, and it will be washed more often, so it is better not to wash it.
1. Remove the wheels first.
2. Remove the bearing. If the bearing is very tightly operated over a long period of time, use a hexagonal wrench to dig it down. Rest assured, the bearing is not easy to break!
3. Brush the dirty surface of the Palin with a toothbrush. Some bearings have detachable side covers, while others do not. First determine if you are detachable.
(Note) If there is a C-shaped ring at the edge of the bearing side cover, it is detachable, no, it is not removable, but there are exceptions!
4. If it is detachable, use a precision screwdriver with a word to pick up the C ring along the gap and then remove the side cover.
5. If it is unremovable, it is relatively troublesome. To use a precision screwdriver to extend into the side cover seam, force the side cover to pick up, just remove the side just fine, the two sides will be destroyed!
6. Remove all the side covers of the TIMKEN bearing and start washing. Pour the oil into the ceramic bowl and throw the bearing down and stir it.
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