Machine Grease Types

3 c p load ratio where c basic dynamic load rating kn and p equivalent dynamic bearing load kn.

Machine grease types. Oil is normally used internally so it can flow through the different tubes and passages and works as part of a system or cycle that allows it to circulate as it lubricates. Base oil thickener and additives. With so many options understanding your needs is important when selecting grease. Paul grives global services grease marketing manager exxonmobil fuels lubricants.

White lithium grease marine grease silicone grease. Let me try to demystify grease a bit. As with any type of lubricant the goal when using a grease is to reduce friction by creating a film that separates the moving surfaces. Simple lithium soaps are often used in low cost general purpose greases and perform relatively well in most performance categories at moderate temperatures.

You need lubrication to stay put and stick to surfaces for a long time you want to seal out contaminants such as water or dust you use a machine so infrequently that you may forget to oil it. While greases can behave similarly to lubricating oils when they are used as a lubricant they are not actually the same thing. Machines that have spindles or rotating grooves can get very hot and a polyurea grease won t break down as quickly as other types of grease. And in each case the operators had been victims of.

Grease is a lubricant it is much thicker than oil and is used in other areas of your machine or vehicle. The most common types are simple lithium soaps lithium complex and polyurea. Different types of greases are typically formulated with three grease components. This converts the thickener to a soap salt complex hence the term complex grease.

1 rotational speed rotational speed r min x 0 5 d d mm. Higher end greases synthetic grease this type of grease is more expensive it s almost three times the cost of a basic grease but it lasts longer than a petroleum based grease. Some customers think grease selection can be complicated and confusing but it doesn t have to be. 2 for ball bearings spherical roller bearings tapered roller bearings and carb bearings rotational speed up to 210 000 and for cylindrical roller bearings rotational speed up to 270 000.

Experts at nsk americas which develops bearings and linear motion systems explain that in every case there had been a recent switch from one type of grease that met the machine manufacturer s specifications for optimal performance to another type that also met the appropriate specs. The most commonly used types of grease in the automotive world is multi purpose the main use for this stuff is chassis components where heat is not an issue this type of grease is typically made from calcium sulfonate. A more complex structure can be formed by using a complexing salt. Numerous types of grease thickeners are currently in use each with its own pros and cons.