Rolling Bearing Of Grinding Mill

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Rolling Bearing Of Grinding Mill

Introduction to rolling bearings for old grinding mills

Summary of contents: The rolling bearing diameter and height of the old grinding mill are relatively large. When the lubricating oil enters the center of the rolling element, the distance is long and the time is slow. If the oil in the bearing box does not reach 2/3 or more, the shape is not oily. Pressure, there will be a phenomenon of poor oil lubrication. The solution to this problem is to expose the upper half of the rolling element so that the lubricating oil can directly contact the rolling element. The lubricating oil can form a good lubrication as long as it exceeds 50% of the oil level in the bearing box, thereby achieving power saving and extending the bearing. The effect of the service life.

The old grinding mill adopts double-row self-aligning rolling bearings. This kind of bearing has good self-aligning function and low resistance and has the following characteristics.

1. When the grinding mill is running, the force of the spindle is downward, and there are also small axial and lateral forces, and no upward force. Standard self-aligning rolling bearings, short cylindrical rolling bearings, etc. are capable of withstanding the radial forces at various positions on the circumference. When used on the main bearing of the mill, only the lower half of the outer ring is subjected to the force, and the upper half is idle. After running for a period of time, Partial wear will occur throughout the outer ring. In order to solve the above problems, after the optimized design and manufacturing of the grinding mill, the outer ring of the bearing is made into the shape of the lower half ring structure, placed in the bearing box, and the overall structure has sufficient dynamic load capacity through the bearing. The structure is complementary to the bearing housing, which achieves the smaller consumables of the rolling bearing, simplifies the machining process, shortens the production cycle, and reduces the cost of the entire bearing body.

2. The size of the rolling bearing of the grinding mill is determined by the size of the mill and the weight of the dynamic load. It is more suitable for the use of the mill, and the manufacturing cost is greatly reduced, and the economic applicability is stronger.

3. Achieve good lubrication and extend bearing life. The rolling bearing diameter and height of the old grinding mill are relatively large. When the lubricating oil enters the center of the rolling element, the distance is long and the time is slow. If the oil volume in the bearing box is less than 2/3, the shape will not be oil pressure. Poor oil lubrication. The solution to this problem is to expose the upper half of the rolling element so that the lubricating oil can directly contact the rolling element. The lubricating oil can form a good lubrication as long as it exceeds 50% of the oil level in the bearing box, thereby achieving power saving and extending the bearing. The effect of the service life.

4. It is convenient to repair and clean the bearings at the end of the year. Because the rolling elements of the bearing and the upper half of the cage are all exposed, the waste oil and debris are easily washed away. In addition, the overall size of the outer ring of the bearing of the old grinding mill is small, and the rolling elements and the cage cannot be completely exposed. Therefore, it is impossible to clean all the waste oil and debris, which will affect future use.

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