The experimental results shown in Fig. 3 show that for the same bearing, in the presence of abrasive grains, the fatigue life of the bearing is only about one-third of that in a clean environment. In the same experimental conditions with medium abrasive grains, the anti-wear grain bearing is about 2.5 times the fatigue life of the standard bearing. If anti-abrasive products specially used under severe working conditions are used, it can operate normally for a long time even in dusty and dusty applications such as coal mills, reducing costly downtime and extending equipment maintenance cycle, thereby increasing production. .
Figure 3 Comparison of bearing fatigue life in abrasive environment
Lubrication requirements for grinding mill bearings
As mentioned above, the requirements of the roller bearing are high, except that because it is operated in a high dust environment, and because the bearing is in a high temperature, low speed operating environment, the lubrication conditions required for the bearing are difficult to meet. We know that the formation of a lubricating oil film is related to the viscosity of the lubricating oil, the pressure between the two surfaces, the relative speed, and the roughness of both surfaces. Below we will analyze the impact of each factor and how we should use it in practice.
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