Grease Consistency
About grease consistency
Consistency is a measurement of basic physical properties of grease indicating grease hardness, which can be adjusted by changing thickener content. Grease consistency has been classified by Japanese Industrial Standards (JIS) based on worked penetration measurements.
ASTM (JIS) Worked penetration
| Hardness | JIS penetration grade | ASTM (JIS) Worked Penetration | NLGI Number |
|---|---|---|---|
 |
No.000 | 445 - 475 | No.000 |
| 00 | 400 - 430 | 00 | |
| 0 | 355 - 385 | 0 | |
| 1 | 310 - 340 | 1 | |
| 2 | 265 - 295 | 2 | |
| 3 | 220 - 250 | 3 | |
| 4 | 175 - 205 | 4 | |
| 5 | 130 - 160 | 5 | |
| 6 | 85 - 115 | 6 |
How to measure Penetration
JIS K 2220 defines the measuring procedure of the consistency of a grease as shown below.
