Bearing use
Precautions for use
Rolling bearings make precision parts, so they need to be cautious when using them. They use high-performance bearings. If they are used improperly, they can't achieve the expected performance. Therefore, the following items should be used when using bearings:
▲ Keep the bearings and their surroundings clean. Even if the smiling dust that is invisible to the naked eye enters the bearing, it will increase the wear, vibration and noise of the bearing.
▲, use the installation carefully, do not allow strong stamping, do not allow the hammer to directly hit the bearing, not allowed to pass the pressure through the rolling elements.
▲ Use appropriate and accurate installation tools, use special tools as much as possible, and try to avoid using cloth and short fibers.
▲, to prevent the corrosion of the bearing, directly take the bearing by hand, to wash the sweat on the hand, and apply high-quality mineral oil before operation, especially in the rainy season and summer to pay attention to rust.
Bearing cooperation
▲, the choice of cooperation
The inner and outer diameters of the rolling bearing are manufactured to standard tolerances. The tightness of the bearing inner ring to the shaft and the outer ring to the seat hole can only be achieved by controlling the tolerance of the journal and the tolerance of the seat hole. The inner ring of the bearing and the shaft are matched by a base hole, and the outer ring of the bearing and the seat hole are made by a shaft.
The correct choice of fit, you must know the actual load conditions, operating temperature and other requirements of the bearing, but it is actually very difficult. Therefore, most of the cases are based on the use of lint selection.
▲, load size
The amount of over-win between the ferrule and the shaft or casing depends on the size of the load. The heavier load uses a larger over-win, and the lighter load uses a smaller over-win.
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