When maintaining machinery or cars,
“Should I use oil or grease here?”
“Is grease the same as high-viscosity oil?”
“If I want to improve slipperiness, should I just apply any oil?”
These questions often come to mind.
Both lubricating oil and grease are lubricants used to reduce friction and wear.
However, their properties and suitable applications are not the same.
Lubricating oil has high fluidity, allowing it to easily penetrate narrow spaces, circulate, and dissipate heat.
Grease, on the other hand, is semi-solid, and its main characteristic is that it tends to stay in place.
Therefore,
It's not just about "which one is more slippery."
Rotational speed.
Load.
Temperature.
Water and dust.
Sealed structure.
Replenishment method.
Need for cooling.
The appropriate lubrication method varies depending on these factors.
This time, we will provide a clear explanation of the differences between lubricating oil and grease, their respective advantages and disadvantages, uses, relationship with viscosity, and how to choose them.
What is lubrication in the first place?
Inside machinery, many parts move in contact with each other.
For example,
Bearings.
Gears.