high speed bearing by rolling vibration

When the operation of the bearing under a radial load, its internal only a plurality of rolling load, due to the ferrule elastic contact constitute the "spring" supporting the rolling body in the radial load line generates periodic oscillation, and the shaft center will therefore vertically moving or moving high speed bearing‍ horizontally, and causes noise. This kind of vibration is called rolling through the vibration, especially in low speed when the more obvious.

And the amplitude is related to bearing type, radial load, radial clearance and ball number. Usually the smaller amplitude, if the amplitude is large when the harm, this is often the minish preload appropriate axial clearance or to reduce.

Effect of temperature on bearing life

Bearing in the work, its size may be changed by changing the structure of the material. This transformation was affected by temperature, time and conical bearing worm gear speed reducer‍ stress.

In order to avoid the dimensional change not allowed due to changes in material structure in the work, bearing materials must go through a special heat treatment.

According to the different types of bearings, bearing in standard hardenability and induction quenching heat treatment of steel, the recommended maximum working Double Row Ball Slewing Bearing‍ temperature is between 120 to 200 degrees. There is a direct relationship between the maximum operating temperature and the heat treatment process can be achieved. If the normal working temperature higher than the highest temperature of some application suggestions, bearing should choose stable series high. If the bearing of continuous working in high temperature, load capacity of the bearing may need to make adjustments.

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