Graphite grease is intended for lubrication of hard heavy-loaded mechanisms (open gearboxes, screw joints, guide screws, jacks, springs, etc.).
Lubricant is efficient at the temperatures lower than minus 20°С in springs and other similar mechanisms.
Index name | Graphite grease |
---|---|
Compliance with classifications NLGI | 2 |
Compliance with classifications DIN 51502 | OGF 2 G-20 |
Appearance | Homogeneous thick black ointment with a silvery tinge |
Thickener | Са |
Dropping point, °С, not less than | 77 |
Penetration at 25°С, mm·10−1 | Not less than 250 |
Shear strength at 50°С, Pa, not less than | 100* |
Effective viscosity at 0°С and with average gradient of the strain rate 10 s−1, Pa·s, not more than | 100* |
Colloid stability, % of secreted oil, not more than | 5 |
* The index is determined by the manufacturer prior to the introduction of filler |