How do you know if grease is compatible?

Greases are considered to be compatible if the following conditions are met:

1. The dropping point of the mixture is not significantly lower than that of the individual greases.
2. The mechanical stability of the mixture is within the range of consistency of the individual greases.

What is Sri grease?

Chevron SRI Grease. NLGI grade: 2. A high temperature ball and roller bearing grease suitable for a wide range of applications and high RPM operations. It delivers excellent oxidation stability and bearing protection at operating temperatures up to 350°F (177°C).

Are lithium and polyurea grease compatibility?

Lithium and polyurea greases cannot be mixed. “They can cause each one to lose their oil and dry out,” said Hamilton. The product loses the ability to lubricate.

Is Polyrex em compatible with lithium?

Mobil Polyrex EM greases have been shown to be compatible with a number of ExxonMobil lithium complex greases, as well as competitive electric motor mineral polyurea products, as determined by the methodology of ASTM D6185. For specific questions about grease compatibility, contact your Mobil representative.

Can you mix NLGI 2 grease?

Mixing incompatible greases can have dire consequences. They may react together and cause a separation of the base oil or oils from the thickeners of the two greases. When this happens, the base oil can no longer stay in place and you get a messy situation – oil oozing or running out of the area where it was applied.

Is it OK to mix synthetic grease with regular grease?

Don’t Mix Grease, but Change If Needed The key is to make the switch as close to 100 percent as possible. If you can, start with completely clean parts and new grease. Otherwise, greasing more often will flush out the old incompatible grease faster.

What is the difference between NLGI 1 and NLGI 2 grease?

There are two basic types of grease for most equipment and machinery applications: NLGI #1 grease and NLGI #2 grease. So what’s the difference? Less thickener makes a #1 grease more tractable and slippery, while #2 grease has more thickener, making it stiffer and great for all-purpose applications.

What does NLGI stand for?

National Lubricating Grease Institute
Traditionally, a grease’s stiffness is indicated by its penetration value and is evaluated using the standardized National Lubricating Grease Institute (NLGI) grade chart. The NLGI number is a measure of the grease’s consistency as indicated by its worked penetration value.

Which is better polyurea or lithium grease?

On average, polyurea greases can have a three to five times better life expectancy than lithium-based greases. Lithium-complex greases generally offer good stability, high-temperature characteristics and some water-resistance properties.

What types of grease do not mix?

The most incompatible were aluminum complex, calcium complex, clay and polyurea-thickened greases. The most common effect was substantial softening, however lithium grease sometimes hardened.

Is lithium grease compatible with rubber?

any – white lithium grease good on rubber. Silicone grease is safe on rubber and actually helps to keep it soft. Any other grease with a mineral oil base will degrade natural rubber. Lithium is used as the base for the grease.

What is Moly lithium grease used for?

Applications. This high quality, practical lithium grease product has industry applications including automotive, mining, water management, and aviation. Sprocket, idler, roller, pillow block and wheel bearings are just a few targets that require greater wear resistance, due to constant metal contact.

When to use Chevron Sri bearing grease 2?

Chevron SRI Grease 2 is recommended: for use in a wide range of automotive and industrial applications for use in antifriction bearings operating at high speeds (10,000 rpm and greater) where the operating temperatures are on the order of 150°C (302°F) and higher

When did chevron cross reference with Standard Oil?

Chevron Cross Reference. That company later became Standard Oil Co. of California and, subsequently, Chevron. It took on the name Chevron when they acquired Gulf Oil Corporation in 1984, nearly doubling its worldwide proved crude oil and natural gas reserves. Chevron is committed to superior product performance and quality.

Which is the best grade of bearing grease?

NLGI grade: 2 A high temperature ball and roller bearing grease suitable for a wide range of applications and high RPM operations. It delivers excellent oxidation stability and bearing protection at operating temperatures up to 350°F (177°C). Where to buy ›

What kind of grease does Exxon Mobil use?

Mobilith SHC™ 460 Chevron Ulti-Plex Synthetic Grease EP™ Conoco Phillips SynCon Extra Long Life™ Exxon Mobil SHC®PM Shell Albida®460 Texaco Starfak®PM Timken Ultra-High Speed Spindle Grease