Self-lubricating bearing industry overview

With the development trend in the field of self-lubricating bearings, the production process and raw materials of self-lubricating bearings keep pace with The Times, and the types of commodities are gradually rich and colorful. According to the difference of product structure and production and manufacturing raw materials, self-lubricating bearings are divided into three categories: laminated, single-sided and other categories, which are divided into several subcategories.The actual results are shown below:

“Laminated” self-lubricating bearing products are made of two or two kinds of different kinds of rolling bearing raw materials stacked composite, in which the lining raw materials have the effect of self-lubricating bearing, the plate has the effect of supporting point, and other raw materials have the effect of connecting and connecting. The actual wetting effect of the “multilayer” commodity is of high quality, and its bearing capacity is determined by the tensile strength of the surface material.According to the type of sheet material and lining material, it can be divided into metal material sheet and metal material lining layer, metal material sheet and non-metal material lining layer and non-metal material sheet and non-metal material lining layer.

“Single type” self-lubricating bearing products is made from a variety of rolling bearing raw materials, Viiplus authorized dealer of goods with the aid of rolling bearing with self-lubricating bearing raw material in the raw materials such as high purity graphite, molybdenum disulfide, ptfe, lead etc. In order to develop RunHua, according to the type of rolling bearing raw materials, can be divided into metal materials and nonmetal materials. Non-metallic material single-sided self-lubricating bearings include the overall non-metallic material rolling bearings, non-metallic material production rolling bearings, etc. Metal material single-sided rolling bearings include solid – state embedded products and oil – containing products.” Solid embedding type” self-lubricating bearings are produced and processed in advance on the metal material sheet according to a certain ordering method, and then solid lubricants are placed in them; In the whole process of work, because of the effect of friction heat or working temperature, solid lubricant is slightly prominent on the rolling surface, and according to the friction, transfer film is produced on the metal material sheet and layer transfer surface, thus having the effect of reducing wear and abrasion. “Oil content type” self-lubricating bearing is the metal powder according to the powder non-metallurgical processing technology to inhibit the calcination into a porous structure of raw materials, and then fill the porosity with grease; In the whole process of work, due to the effect of friction heat or working temperature, the grease is precipitated from the rolling bearing, and the grease film is produced on the metal material sheet and layer transfer surface, thus having the effect of reducing wear and abrasion.

Self-lubricating bearings are suitable for fields where oil is not available or difficult to be fed. Because of the rules of the unique production process, some major equipment of the automotive industry, mechanical engineering company must work in extreme conditions, because the machine equipment, high working temperature, smoke or acid alkaline etching vapour in the air, and other factors, can’t add grease for machine equipment, and roller bearing or general rolling bearing friction damage more serious, It is easy to bite or kill rolling bearings, cause damage and destruction of parts, and cause the machine and equipment to stop operation.In order to make the continuous operation of production and manufacturing better, besides the installation of several machines and equipment in the initial design scheme, it is also necessary to invest a lot of maintenance personnel, spare parts and huge energy consumption. Therefore, companies in the automotive industry, engineering machinery and equipment, machining industry, etc. have the requirements for special moistening raw materials under the complicated working conditions and standards.Oil-free can greatly simplify the rolling bearing design and structure, control the cost, save the design time, can not maintain or less maintenance in the application of rolling bearings, but also avoid the risk caused by the lack of oil.

Because self-lubricating bearings do not need to provide oil equipment, they do not need to supply oil in the whole process of work, which can save a lot of installation and operation costs, improve physical properties, improve service life and stability.No oil will never use waste oil treatment solution, but also beneficial to ecological environmental protection.The strength of self-lubricating bearings for grinding shaft is relatively low, thus reducing the difficulty of production and processing of related parts.In the structure of self-lubricating bearing composite bearing, the surface can be electroplated with a variety of metal materials, which can be used in etched substances.In addition, because the diaphragm vacuum pump wetting does not have the problem of vegetable grease evaporation, self-lubricating bearings can be used in ultra-high pressure natural environment.

Self-lubricating bearings do not need to provide oil maintenance, wear resistance, high temperature resistance and other characteristics to greatly expand the scope of application of goods, many general rolling bearings can not serve as the industry can apply self-lubricating bearings, so self-lubricating bearings have a wider development trend than general rolling bearings indoor space.

Imported composite dry sliding bearings are divided into flip (friction) bearings and sliding bearings according to the difference in friction characteristics. It goes without saying that rolling bearings are undoubtedly smaller than sliding bearings with lower frictional resistance, faster start-up, and high efficiency. This is the advantage of rolling bearings. Compared with sliding bearings, rolling bearings have large axial specifications, weak damping capacity, low service life at high speeds, and loud noises. Defects of self-lubricating bearings in high-end gearboxes. The most basic structure of the sliding bearing is divided into the piston pin and the motor shaft (the simple structure is very obvious). Rolling friction and flipping friction are essentially different (one is point contact and the other is surface contact), which also has substantial advantages and disadvantages.

Advantages:

1. High bearing capacity; (due to the large total contact area)

2. Simple structure, convenient manufacturing, production and processing, disassembly and assembly;

3. Excellent impact resistance and excellent vibration absorption characteristics, stable operation, high precision rotation .

Defects:

1. Complex maintenance and high requirements for lubrication standards;

2. The bearing is lubricated at the limit, causing great friction damage. (This is also the disadvantage of the large total contact area) The application of sliding bearings is: high-speed, high-precision, light load, or even in equipment with low-speed impact. In addition, it is believed that most places use rolling axis.