Major classification and principles of lubricating grease

Main categories

1. Organic silicone grease

A grease product that uses silicone grease as the base oil and adds thickeners, wiring and performance improvers. Put the above components into a vacuum kneader, mix them evenly under heating and reduced pressure, then further grind them with three machines, and then package them after deaeration treatment.

2. Lithium-based grease Lithium-based grease is made from natural fertilizer (stearic acid or 12-supported stearic acid) lithium soap, thickened medium-viscosity mineral wetting agent or synthetic lubricant, and synthetic lithium-based grease Grease is made from synthetic grease soaps, mineral emulsions in a thickening base. Common greases include Ironmaster green grease, Ironmaster TM COMPLEX instant synthetic lithium complex grease, etc. Ironmaster TMCOMPLEX synthetic lithium complex grease is formulated by adding polyolefin (PAO) synthetic base oil composite material to lithium soap base. It has outstanding low-temperature pumping performance, low starting and starting drawings at low temperature, and good water resistance. performance, adhesion and shear stability.

3. Bentonite grease Bentonite grease is made of medium- or high-viscosity mineral oil thickened by organic bentonite treated with surfactants. It is suitable for lubrication of vehicle chassis, driving rudders, universal joints, water pumps, wheel hubs and bearings. . The most widely used bentonite grease is Ironmaster Red Grease. Tieba Red Grease is made from the highest quality paraffin base oil and bentonite clay through a special formula and unique process. It can maintain good shear resistance, stability and durability under extremely high pressure and high temperature environments. It has excellent corrosion resistance, salt spray resistance, steam resistance, oxidation resistance, dust resistance and weathering resistance. Ironmaster red grease is also one of the few greases that can withstand heavy loads and withstand Timken's 289.5N pressure resistance. Ironmaster red grease contains special EP extreme pressure additives that will not melt in high temperature environments, and the maximum transient operating temperature is 593°C.

4. Calcium sulfonate complex grease

Calcium sulfonate complex grease is composed of base oil, thickener and additives. The thickener consists of two parts: one part is highly alkaline non-Newtonian calcium sulfonate, and the other part is calcium complex soap. There are both physical mixing and chemical association. The most typical calcium sulfonate complex greases are Ironmaster black grease and Ironmaster TP2000 series grease. American Railmaster TP2000 series calcium sulfonate complex grease is formulated using the most advanced international technology and a special process using complex calcium sulfonate soap. It has excellent mechanical stability, high load capacity, excellent water resistance, oxygen resistance and corrosion resistance, and also has significant high temperature resistance. Compared with other high-temperature greases such as lithium complex grease, aluminum composite grease and polyurea grease, it is superior in performance and is a series of newly developed lubricating products.

5. Aluminum-based grease

Aluminum-based grease is made from mineral oil thickened by aluminum stearate soap or lubricating oil thickened by synthetic fatty acid complex aluminum soap. It has a high dropping point and good mechanical and colloidal stability. It is suitable for railway locomotives, automobiles, water pumps, motors, etc. Various bearing lubrication, suitable for high temperatures of 150~180℃. With high degree of water resistance. Ironmaster LEP Aluminum synthetic composite aluminum-based grease is formulated from high viscosity index PAO synthetic base oil, special additives and polymers added to the aluminum soap base. Suitable for use on equipment and machines with relatively large temperature differences, especially electric motor bearings used at low temperatures. It has particularly good cryogenic pumping performance and can be used in centralized grease supply systems. This is an ideal high-performance multi-purpose grease. Railmaster LEP Aluminum synthetic composite aluminum-based grease is suitable for mining equipment and electric motors in high and low temperature working environments. It is also suitable for use in high-speed bearings with DN values up to 500,000.

Selection principles

When selecting grease, you should not simply compare the unit price of the grease, but comprehensively examine the grease's performance, operating temperature, lubrication cycle, etc. The correct selection of grease reduces the number of additions and consumption, reduces maintenance costs, reduces downtime losses, and reduces overall costs.