Bentonite grease are extreme pressure clay thickened grease. They are high-quality, extreme pressure (EP), clay thickened grease developed for the lubrication of industrial equipment operating under heavy loads and at high temperatures. It is recommended for medium to large, low speed bearings operating at very high temperatures where conventional soap based greases typically fail to provide satisfactory lubrication.
Grease is a solid or semisolid lubricant formed as a dispersion of thickening agents in a liquid lubricant. Grease generally consists of a soap emulsified with mineral or vegetable oil. The lubricating fluid is usually the majority component in the grease formulation. The additives are typically present in relatively low concentrations, and are added to the grease to provide enhancement in one of multiple performance areas. The thickener is what sets grease apart from liquid lubricants. This component gives the grease the property of consistency, making the product semi-solid rather than liquid. Many different chemical compounds can be used to thicken grease.
CLAY GREASE / BENTONITE GREASE
Clay grease or bentonite grease were the most popular non-soap thickened greases. These smooth-textured greases can have outstanding heat resistance, since the thickener will not melt and when tested for dropping point, do not give a value.
Benefits and Value
- No dropping point
- Excellent water resistance
- Fair work stability
- Fair low-temperature properties
- Abrasive parts can accumulate over time
- Limited corrosion resistance, extreme pressure and AW
- High-temperature limitations
Clay Grease / Bentonite Grease Applications
- High temperature applications for short intervals
- Frequent relubrication needed
Features & Benefits
- Non-melt clay thickener
- Excellent resistance to changes in consistency at high temperatures
- Good EP and antiwear properties
- Adheres to metallic surfaces
- Good shear stability
- High film strength
- Resists water washout
- Good mechanical and storage stability
Applications
- Banbury mixers
- Drying ovens
- Jaw crushers
- Kiln cars
- Rolling and strip mills
- Steel mills
- Aluminum, cement, glass and rubber plants