The difference between sliding bearings and rolling bearings

Rolling bearings refer to bearings that contain rolling elements for rolling motion between parts; sliding bearings do not use rolling elements and only work under sliding friction.

Rolling bearings have the advantages of small friction coefficient, good transmission and mechanical properties, and are currently the dominant type in the bearing industry, especially for mechanical equipment with high operating speed requirements. Rolling bearings have achieved standardization, serialization and generalization, and are suitable for mass production and supply, which has also promoted the overall development of rolling bearings.

Sliding bearings have the advantages of small size, high load-bearing capacity, low vibration, low noise, and many structural changes. Therefore, sliding bearings need to be used in situations where the load is large, the structure requires a compact structure, and where precision is very high and vibration is not allowed. The advantage of many structural changes also allows sliding bearings to be applied to various mechanical parts of different shapes. The complementary advantages of rolling bearings and sliding bearings achieve optimal movement of mechanical equipment.

The difference between sliding bearings and rolling bearings:

1) The structure is different. Sliding bearings rely on smooth surfaces to support the rotating shaft, so the contact part is a surface; rolling bearings rely on the rotation of rolling elements to support the rotating axis, and the contact part is a point. The more rolling elements, the The more touch points there are.

2) The modes of motion are different. The mode of motion of rolling bearings is rolling; the mode of motion of sliding bearings is sliding, so the forms of friction are completely different.

Advantages of sliding bearings:

· Most sliding bearings are based on copper alloy and have the characteristics of high strength, good wear resistance and corrosion resistance. They are suitable for working under medium speed, high turbidity and impact load conditions.

· The load capacity of the same volume as a rolling bearing is much greater.

· It has low vibration and noise, can withstand impact and vibration loads, and can be used in situations that require high precision and do not allow vibration.

· It has less impact on metal foreign objects and is less likely to cause early damage.

· Long service life, under high-speed working conditions, it can operate at high speed for a long time under liquid lubrication conditions.

· High operating precision, balanced work and no noise.

· The structure is simple, making the machine compact and easy to assemble and disassemble.

Mingxu Bearing specializes in the production and research and development of sliding bearings for more than ten years. The main products include high-temperature resistant maintenance-free bearings, heavy-duty oil-free bearings, impact-resistant high-strength skateboards, and self-lubricating bearings, which have reached the level of "domestic leading and internationally advanced". The company's products are widely used in the automotive industry, engineering machinery, metallurgical equipment, mining machinery, injection molding, molds, textiles, printing and many other machinery manufacturing fields. They are distributed in all major provinces in China and exported to many overseas countries, and are favored by domestic and foreign customers.