 DROPPING POINT |
The drop point of a particular type of grease is that temperature at which the first drop of liquid separates when the grease is heated under prescribed conditions.
| PENETRATION |
The measure which indicates te softness or hardness of a grease. The NLGI has developed a numerical scale to classify the consistency of grease based upon their worked 60-stroke penetration values.
| NLGI GRADE NUMBERS / PENETRATION |
| NLGI Grade |
ASTM Worked
Penetration, 60 Stroke |
Penetration and typical Methods
of Application |
| 000 |
445 - 475 |
Very Fluid; used in centralized systems |
| 00 |
400 - 430 |
Fluid; used in centralized systems and enclosed gear boxes |
| 0 |
355 - 385 |
Semi-Fluid; used in centralized systems |
| 1 |
310 - 340 |
Very soft, used in grease gun,
centralized system or normal application |
| 2 |
265 - 295 |
soft, used in grease gun,
centralized system or normal application |
| 3 |
220 - 250 |
Medium Hard , used in grease gun
or normal application |
| 4 |
175 - 205 |
Hard , used in grease gun
or special application |
| 5 |
130 - 160 |
Very Hard , used in special application |
| 6 |
85 - 115 |
Extremely Hard; block grease; used in open grease cellars or special application. |
| TIMKEN OK LOAD |
Maximum load a lubricant will withstand without failure due to breakdown of the lubricant film, as determined on tthe Timken EP Lubricant Tester. In other words, Timkin OK load is the heaviest load that can be carried without scoring.
| EXTREME PRESSURE (EP) ADDITIVE |
Chemical compound imparting extreme pressure characteristics to a lubricant with the objective of reducing wear under condition where rubbing or sliding accompanies high contact pressures, as in heavily loaded applications.
MOLYBDENUM DISULPHINE (MOS2) AND GRAPHITE
A very effective solid lubricant that is used for back-up lubtication in extra high temperature and high load applications.
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