The role of polyurea grease in bearing lubrication

It has good pumpability, oxygen resistance, mechanical stability, colloid stability and water spray resistance. It is especially suitable for lubrication situations with high temperature, high load, wide speed range and contact with poor media. It is now widely used in the electrical industry, Metallurgical industry, food industry, paper industry, automobile industry, aircraft and other military industries.

The development trend of grease in the world and the current status and gap of grease in my country. In recent years, my country has made great progress in the production technology and application technology of grease. However, compared with developed countries, our product composition, especially in high-end products, is poor. There are still gaps in development.

Now we will briefly discuss the application status and development trends of grease at home and abroad.

The application status of foreign greases. For developed countries in the world, such as the United States, Europe, and Canada, the most widely used and produced greases are lithium series greases, followed by calcium-based greases, and composite aluminum-based greases also account for a considerable proportion.

In Japan, the application of polyurea grease is quite common. Considering mechanical equipment, transportation conditions, sealing mechanism, etc., the performance requirements for grease in the future are roughly as follows:

Long life, wide temperature performance, good mechanical stability and leakage, good high speed and low torque characteristics, extreme pressure, anti-wear, resistance to fretting wear, needle resistance, etc.; less dust and impurities, good acoustic performance Good transporting properties such as good pumpability and availability; good protective properties; adaptability to sealing materials; mixing stability with other lipids.

(Base oil thickener) Automobile constant velocity coupling is heat-resistant, resistant, vibration-resistant and adaptable to rubber materials. Mineral oil,polyurea mineral oil,lithium soap wheel hub bearing is integrally cloth-resistant, heat-resistant, micro-vibration resistant. Damaged mineral oil,Polyurea mineral oil Lithium soap mineral oil,Lithium complex soap Electrical equipment High temperature, high speed High temperature, high speed, wide vibration resistance, use characteristics within a temperature range, rust resistance Synthetic hydrocarbons,polyurea esters Oil polyurea micro bearings Small, lightweight household appliances Low noise, low torque, low scattering, heat resistance, adaptability to resins, etc. Mineral oil lithium soap ester oil Lithium soap mineral oil complex sodium soap Metallurgy Continuous casting machine high temperature heat resistance, water resistance mineral oil,polyurea mineral oil,composite aluminum soap rolling mill bearings high PV extreme pressure, water resistance, rust prevention and high speed and high load mineral oil,lithium soap mineral oil polyurea mineral oil ,Calcium complex soap mineral oil for high-speed railway vehicles and Lithium soap mineral oil Calcium soap traction motor high-speed mineral oil Lithium complex soap 1.2 Development trend Lubricating grease has a long history, and it has matured with the development of mechanization. Currently widely used greases, such as lithium-based grease, lithium complex grease, calcium-based grease, calcium-complex grease, aluminum-complex grease, etc., were developed in the 1940s and 1950s. The amount of these greases accounts for More than 95% of annual output.

Polyurea grease, sulfonate complex calcium-based grease, and titanium complex grease are the rising stars in the grease category. As a type of high-temperature grease, polyurea grease has better overall performance than other high-temperature greases.

The United States was the first to develop polyurea grease, and Chevron holds a leading position in the development and production of polyurea grease.

In recent years, Germany, the United Kingdom, Japan, the former Soviet Union, Poland and China have successively carried out the development and production of polyurea grease.