A. Greases vary widely in their performance capability in respect to the basic performance factors. Greases for heavy equipment can be designed to pump very easily in cold weather while lasting up to three or four times longer in severe service. The key is to ask the right questions regarding grease design and performance capability matched to the operating conditions.
The most basic rule of thumb in selecting the right grease is to take these three factors into consideration:
1) Grease “staying power” or anti-leak performance capability. This quality ensures the grease will provide the necessary protection for the scheduled service interval and seal out contaminants.
2) Grease pumpability. It is important that the grease can be dispensed or pumped at the given temperature range. If the grease cannot be fairly easily pumped, it can lead to problems on all levels.
3) Wear protection. Protecting the component against the forces that can cause premature component rebuild is the ultimate objective.