The working principle of Dalian bearings

The working principle of Dalian bearings

The working principle of Dalian bearings is mainly based on the principles of rolling friction and sliding friction, which support and transmit rotational motion through different structural forms. Below, we will introduce a very common rolling bearing as an example.

Rolling bearings are mainly composed of an inner ring, an outer ring, rolling elements, and a cage. The inner ring usually fits tightly with the shaft, while the outer ring fits with the bearing seat. The rolling elements roll in the raceway between the inner and outer rings, and the cage is used to evenly separate the rolling elements to prevent them from colliding and rubbing against each other.

When the shaft bears force, the load is transmitted to the rolling elements through the inner ring, and the rolling elements roll in the raceway, converting sliding friction into rolling friction, thereby greatly reducing the friction torque. Due to the shape of the rolling elements and the design of the raceway, bearings are able to withstand radial loads, axial loads, or a combination of both. For example, the rolling elements of deep groove ball bearings are spherical and can withstand both radial and axial loads simultaneously; The rolling elements of cylindrical roller bearings are cylindrical and mainly bear radial loads; The rolling elements of angular contact ball bearings are spherical, and the size of their contact angle determines their ability to withstand axial loads.

During the operation of bearings, maintaining the support plays a crucial role. It can not only maintain the uniform distribution of rolling elements, but also guide them to roll correctly in the raceway, avoiding tilting and jamming of rolling elements. At the same time, the cage can also reduce friction and wear between the rolling elements and the raceway, improving the service life of the bearing.

Lubrication is an essential step to ensure the normal operation of bearings. Lubrication can form a layer of oil film between the rolling elements and the raceway, reducing direct metal contact, friction and wear, while also serving functions such as heat dissipation and rust prevention. According to different working conditions and requirements, different lubrication methods can be selected, such as oil lubrication, grease lubrication, solid lubrication, etc.

As an indispensable key component in the field of machinery, Dalian bearings play an important role in various equipment due to their characteristics, materials, and working principles. The characteristics of high precision, high load-bearing capacity, low friction coefficient, high speed adaptability, and long service life enable bearings to meet the complex working requirements of different equipment; The diverse selection of materials such as bearing steel, ceramic materials, and plastic materials provides suitable solutions for different application scenarios. A deep understanding of the working principle of bearings helps us better design, use, and maintain various mechanical equipment, and improve the performance and reliability of the equipment. With the continuous development of technology, bearing technology is also constantly innovating and advancing. In the future, we will see more high-performance and high-quality bearing products, making greater contributions to promoting industrial modernization and social development.