 Castrol Tribol 4020 220-2 Greases with TGOA® are light colored, elevated temperature, multi-service greases designed to extend the service life of bearings in heavy duty and elevated temperature applications.
TGOA is an additive package designed to reduce friction while providing surface protection and improvement due to its unique action on frictional surfaces. Because of the possible adverse effects on the environment, typical materials of expressed concern: i.e. antimony, barium, lead, zinc; are NOT used in Castrol Tribol 4020 220-2 Greases.
Because of the ISO 220 base oil viscosity, Castrol Tribol 4020 220-2 Greases provide a heavier oil film for applications at slower speeds, higher loads, and/or higher temperatures.
Castrol Tribol 4020 220-2 Greases are formulated from a petroleum base oil, a lithium complex thickener, and TGOA, the latest advancement in the field of friction reducing and surface improving additive technology.
The load-carrying, antiwear, and friction reducing capabilities of Castrol Tribol 4020 220-2 Greases exceed conventional complex greases. High perform-ance is the result of the TGOA additives, which under relatively high specific loads and related temperatures, promote a nondestructive smoothing of surface roughness in the microrange. This smoothing effect leads to an increase of the actual load-bearing area and reduces friction.
The TGOA additives are very effective in protecting the machined surfaces of bearings during the critical “running-in” period. Good bearing surfaces are essential for long bearing life.
If, because of shock loads or stop-and-go operation, surface roughness peaks redevelop, the TGOA additive package automatically reactivates. Surface roughness is again smoothed and lubrication optimized. |
Applications:
Castrol Tribol 4020/220-2 Greases meet NLGI consistency and 2 respectively. They are formulated from premium petroleum base oils, ISO VG 220.
Castrol Tribol 4020/220-2Greases with TGOA were formulated as multi-service lubricants for heavy duty applications of plain and antifriction bearings from medium to high loads. They are designed for continuous operating temperatures up to 150°C/302°F. Generally, for continuous service above 150°C/302°F, more frequent reapplication is required to prevent deterioration of the petroleum base fluid. Reapplication cycles should be established that insures the grease does not stiffen in the bearing. |
