What is a bearing alloy? Bearings are hardware products

Babbitt alloy (including tin-based bearing alloys and lead-based bearing alloys) is the most widely known bearing material, named after the invention of the American Babbitt because of its white color, also known as white alloy, and its application can be traced back to the Industrial Revolution.

Era. Tin-based babbitt and lead-based babbitt alloys with anti-friction properties are the only materials suitable for rotation relative to low-hardness shafts, and have better adaptability and indentation than other bearing materials, and are widely used in large marine diesel engines and turbines.

alternators, as well as other mining machinery and large rotating machinery, etc. The main components of babbitt are tin, lead, antimony, copper. Among them antimony and copper, which are used to improve the strength and hardness of alloys.

In practice, babbitts can be simply divided into three categories: high-tin alloys, high-lead alloys, and master alloys (tin and lead both account for a significant proportion of the alloys). In all of these alloy systems, antimony and copper are important alloying and hardening elements, and their structures are composed of hard, diffuse intermetallic compounds in a soft matrix.

The structure of babbitt alloy is characterized by a uniform distribution on a soft-phase matrix.

With the hard phase particle point, the soft phase matrix makes the babbitt alloy have very good embedding, compliance and anti-seizure properties, and after running-in, the soft matrix is concave and the hard point is convex, so that a small gap is formed between the sliding surfaces, which becomes the oil storage space and lubricating oil channel, which is conducive to friction reduction; The hard points of the upper convex play a supporting role and are conducive to load-bearing.

Babbitt alloy is used in addition to the manufacture of plain bearings.

In addition, because of its soft texture and low strength, it is often sprayed on steel and other substrates to make bearings.

Use. In order to prevent segregation of the components and refine the grains, a small amount of arsenic is often added.

According to national standards, babbitt alloy can be divided into two types: tin-based alloy and lead-based alloy. Lead-based alloys have lower strength and hardness than tin-based alloys, and have poor corrosion resistance. Therefore, when customers use babbitt, they usually choose tin-based alloys, and their commonly used grades are -8 and so on.

Although the performance of lead-based alloys is not as good as that of tin-based alloys, many customers still choose to use it because it is more economical to use, and its commonly used grades are -5 and so on.

Yixing Huanyu bearing manufacturing **** - specializing in the manufacture of various types of babbitt bearings.

The bearing alloy should have the following properties: good wear resistance and wear reduction performance; There is a certain compressive strength and hardness, sufficient fatigue strength and bearing capacity; Good plasticity and impact toughness; It has good anti-seizure properties; Good compliance; Good inlayability; It is necessary to have good thermal conductivity, corrosion resistance and a small coefficient of thermal expansion. It is used in various bearing materials.

It's also a forging knife!

Bearing is an important component in contemporary machinery and equipment.

Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. It is used in metallurgy, wind power, mining machinery, aerospace, auto parts, etc. Skin's first thought.

The working principle of the bearing:

The rolling bearing developed on the basis of the bearing, its working principle is to replace the sliding friction with rolling friction, and it is generally composed of two rings, a group of rolling elements and a cage The mechanical basic parts with strong versatility, standardization and serialization are very high. Due to the different working conditions of various machinery, various requirements are put forward for rolling bearings in terms of load capacity, structure and performance and other aspects.

The bearing is usually evenly arranged between the two rings with the help of the cage for rolling motion, its shape, size and number directly affect the bearing load capacity and performance, the cage can not only evenly separate the rolling elements, but also play a role in guiding the rotation of the rolling elements and improving the internal lubrication performance of the combustion bearing. <>

Summary. In the early form of linear motion bearings, a row of wooden poles was placed under a row of skid plates. Modern linear motion bearings use the same operating principle, except that balls are sometimes used instead of rollers.

The simplest rotary bearing is a sleeve bearing, which is simply a bushing sandwiched between the wheel and the axle. This design was then replaced by rolling bearings, which replaced the original bushings with many cylindrical rollers, each of which acted like a separate wheel.

Bearings are hardware products

Hello dear! We'd be happy to help you with your questions! The bearing belongs to the hardware products!

Strictly speaking, hardware tools belong to hardware products. Bearing is a component that fixes and reduces the friction coefficient of load in the process of mechanical transmission. It can also be said that when other parts move relative to each other on the shaft, it is used to reduce the friction coefficient in the process of power transmission and keep the center position of the shaft fixed.

In the early form of linear motion bearings, a row of wooden poles was placed under a row of skid plates. Modern linear motion bearings use the same operating principle, except that balls are sometimes used instead of rollers. The simplest rotary bearing is a sleeve bearing, which is simply a bushing sandwiched between the wheel and the axle.

This design was then replaced by rolling bearings, which replaced the original bushings with many cylindrical rollers, each of which acted like a separate wheel.