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Considerations for correct maintenance of bearings

wallpapers Tech 2021-01-18
Normally, in order to judge whether the disassembled bearing can be used normally, it is necessary to check after the bearing is cleaned. Check the state of the raceway surface, the rolling surface, the mating surface, the wear of the cage, the increase of the bearing clearance, and the damage that is not related to the decrease of dimensional accuracy. For non-separable small ball bearings, use one hand to support the inner ring horizontally and rotate the outer ring to confirm whether it is smooth. Separate bearings, such as tapered roller bearings, can separately inspect the rolling elements and raceway surfaces of the outer ring. Because large bearings cannot be rotated by hand, pay attention to check the appearance of rolling elements, raceway surfaces, cages, rib surfaces, etc. The higher the importance of the bearing, the more careful inspection.
 
Secondly, dry the cleaned bearing with a rag, and then soak it in anti-rust oil. During this process, the bearing should be completely in contact with the anti-rust oil, and the bearing should be rotated continuously so that the oil film formed by the anti-rust oil can cover the surface of the bearing, so as to achieve the purpose of anti-rust.
 
Then you need to apply butter evenly on the surface of the bearing, including the inner and outer rings, wheels, and cage. And the bearing is rotated while wiping, so that the butter really enters the inside of the bearing and has a full lubrication effect.
 
Pay attention to the following matters when using bearings
1. Keep the bearing and its surrounding environment clean
Even if the invisible smile dust enters the bearing, it will increase bearing wear, vibration and noise.
2. Be careful when using and installing
Strong punching is not allowed, hammers are not allowed to directly hit the bearings, and pressure is not allowed to pass through the rolling elements.
3. Use appropriate and accurate installation tools
Try to use special tools and try to avoid using a cloth and short fibers.
4. Prevent bearing corrosion
When picking up the bearing directly by hand, wash away the sweat from your hands and apply high-quality mineral oil before operating. Pay special attention to rust prevention during the rainy season and summer.

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