Basic Features of Rolling Bearing

Advantages:

(1) : Significant energy saving. Due to the characteristics of the rolling bearing movement, its friction force is much smaller than that of the sliding bearing, which can reduce the power consumption due to frictional resistance, so the energy saving effect is significant. From theoretical analysis and production practice, general small ball mills using rolling bearings as main bearings can save up to 30% to 35% electric energy, medium-sized ball mills can save up to 15% to 20%, and large ball mills can save up to 10% to 20%. Since the ball mill is a large energy consumer in production, this will mean considerable cost savings.

(2) Easy maintenance and reliable quality. The use of rolling bearings can eliminate a series of complex and technical requirements maintenance processes such as smelting, casting and scraping of Babbitt alloy materials, as well as oil supply and water supply cooling systems, so maintenance is greatly reduced. Moreover, since rolling bearings are manufactured by professional manufacturers，their quality is often guaranteed，so that brings convenience to ball mill manufacturers.

Merits:

1. Small friction resistance, low power consumption, high mechanical efficiency and easy start;

2. Standardized dimensions, interchangeable, easy to install and disassemble, and easy to maintain;

3. Compact structure, light weight, and smaller axial size;

4. High precision, large load, small wear and long service life;

5. Some bearings have automatic self-aligning performance;

6. Suitable for mass production, with stable and reliable quality and high production efficiency;

7. The transmission friction torque is much lower than that of hydrodynamic bearings, so the friction temperature rise and power consumption are lower;

8. The starting friction torque is only slightly higher than the rotating friction torque;

9. Bearing deformation is less sensitive to load changes than hydrodynamic bearings;

10. Only a small amount of lubricant is needed to operate normally, and lubricant can be provided for a long time during operation;

11. The axial size is smaller than traditional hydrodynamic bearings;

12. Can withstand combined radial and thrust loads at the same time;

13. The unique design can achieve excellent performance within a wide load-speed range;

14. Bearing performance is relatively insensitive to fluctuations in load, speed and operating speed.

Defects:

1. loud noise.

2. The structure of the bearing seat is relatively complex.

3. The cost is higher.

4. Even if the bearings are well lubricated, installed correctly, tightly protected against dust and moisture, and operate normally, they will eventually fail due to fatigue of the rolling contact surfaces.