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Dolomite Grinding Mill

Factors Affecting the Life of Roller Bearings in Dolomite Grinding Mills

For the Dolomite Grinding Mill, the grinding roller is the heart of the Dolomite Grinding Mill, and the roller bearing is the heart of the roller. The normal operation of the roller bearing is the key to the reliable operation of the Dolomite Grinding Mill. The roller bearing is operated under the complicated environment of high temperature, impact, heavy load and low speed. The outside of the grinding roller has more severe working conditions such as high dust. How to properly use the roller bearing and prolong its use in this condition Lifespan has always been a concern for users and designers. Therefore, it is especially important to analyze the failure mode of the bearing during use and how to avoid it. The factors affecting the life of the roller bearing mainly include the following aspects: the condition of the bearing itself, the use of the bearing, the operation of the Dolomite Grinding Mill, the storage of the bearing, and the like.

Dolomite Grinding Mill bearing itself

The bearing material, heat treatment process, as well as its strength and wear resistance, surface structure, internal geometry, etc., will affect the service life of the bearing. For the user and the designer, it is necessary to understand the working condition and load state of the bearing, and provide relevant parameters and working conditions when selecting the bearing. The specific problem of the bearing can be considered by the bearing manufacturer.

Bearing use

The bearing use aspect is the aspect that the user can subjectively control, and it is also the key to affect the bearing life of the Dolomite Grinding Mill. From the installation to the specific operation and maintenance, the factors affecting the bearing life are infiltrated.

Installation: The installation quality of the Dolomite Grinding Mill grinding roller bearing is an important factor affecting its service life. Many premature failures or damages of the roller bearing are related to improper assembly. When the user replaces the roller bearing, it must be strictly in accordance with the requirements of the manual. If it is loose or too tight, it will cause premature damage of the roller bearing. First of all, avoid hammering during the specific installation process. The bearing installation should be heated. Pay attention to the heating position and temperature control when heating. It is required to heat the oil together with the bearing in the cold state. The temperature is controlled at 100~110 °C. After the bearing is installed, it should be cleaned with kerosene; after the whole grinding roller is assembled A compression test must be carried out with a test pressure of 0.05 MPa and a pressure hold of 30 minutes.

Dolomite Grinding Mill operation

The vibration of the Dolomite Grinding Mill affects the service life of the bearing, so the vibration is reduced during the operation of the Dolomite Grinding Mill, especially the horizontal vibration, which provides a reliable guarantee for the good operation of the roller bearing. The Dolomite Grinding Mill is loaded in a concentrated manner by the pressure frame. As the disc rotates, a horizontal tangential additional force is generated at the pressure frame. Therefore, for large Dolomite Grinding Mills, a buffer is added to the Dolomite Grinding Mill. The effective operation of the buffer device is the key to reducing horizontal vibration.

Bearing storage

Improper storage of bearings is also a factor affecting their life. If the bearings are not placed horizontally, it will affect the accuracy of the clearance; if the packaging is not tight, encountering humid air will cause the working surface of the bearing to rust, resulting in tiny pits and running. Stress concentration points are generated, which in turn cause failure and affect life.

As the core component of the grinding roller, avoiding the failure of the roller bearing and ensuring the service life of the roller bearing is the key to the effective operation of the Dolomite Grinding Mill. From the selection, installation, use, maintenance and other aspects of the roller bearing, there are hidden factors affecting the life of the bearing. The user must do a good job in all aspects to ensure the normal operation of the roller bearing and even the entire production line.

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