AMSOIL Synthetic Grease
Grease may seem simple enough, the truth is proper greasing requires a little caution with regards to “thickener compatibility”. For timing applications, it’s generally increased frequency that keeps the wheels turning as long as possible. When original equipment manufacturers provides information for choosing the grease type (thickener), the choices are simple. On the other hand, some applications are very unique by design and wrong choice of grease can actually cause the component to malfunction for even seize.
Grease is a semi-solid lubricant with unique properties that differentiate it from other typical lubricants. In certain applications, grease continually clings to the surface to lubricate moving parts despite gravity, centrifugal force and extreme pressure. The better grease clings to these surfaces, the less frequent a new application will be required.
When comparisoning grease one brand to another, consider the key properties and test standards. NLGI grade and “thickener type” are very important for compatibility issues. ASTM data provides testing results related to the grease’s ability to protect;
- in hot and cold conditions
- provide adequate load and wear protection
- protect from corrosion
- water washout
- oil separation
- suitable for food service and pharmaceuticals equipment
When comparing grease, first consider what is most important about your application. It’s not important that one grease outperforms another in every test parameter. Instead, how well does the grease outperform in the test areas of greatest importance in a particular application. For example, an application that carries heavy loads and some shock loading. The “Timken OK load”, “Four-ball Wear” and “Four-ball EP” need to be higher than other brands for better maintenance results and the cost per value.
See the AMSOIL Newsstand Grease Saves Commercial Account Big Money for an example for cost per value.
Research/Choosing the right Grease
Sometimes there are no standard guidelines to follow for grease. In this case the more you know about the application, operating environment, component speed and load pressure, the better off you will be. Sometimes grease related issues are masked by maintenance practices; such as over-greasing with sub-standard lubricant properties.
The myth is, “we don’t have a problem, so why change to a different grease?”
The truth is to as better questions that can lead to better results for standard and non-standard grease applications.
- What is the application? (Rotating bearing, pivot bushing, two pieces sliding together, etc.)
- What environment is it in? (Inside/outside, wet, dry, hot, cold, dusty, etc.)
- What speeds? (High speed (>10,000rpm), low speed (<10,000rpm), non-rotating)
- What loads? (Heavy, light, impact)
- What does the equipment manufacturer recommend? (NLGI grades, thickener systems, non-tacky, specifications)
- Do you have any problems with the grease you use today?
- Do you have a grease incompatibility issue?
After choosing the right grease from your research, a comparison for cost per value is simply choosing the best ASTM results specific to your grease application.