Castrol Tribol OG 500-0 (previously called Castrol Tribol 5000) with TGOA is a high-performance open gear grease. It was especially developed for application in cement, mining and other heavy industries, to assure proper tribo-technical and economical maintenance of open gears through automatic spray systems. Castrol Tribol OG 500-0 differs from conventional asphaltic type open gear lubricants, as it does not contain solvents nor solids. Outstanding extreme pressure (EP) antiwear characteristics are derived from the latest development in the field of surface improving additives designated TGOA. The TGOA additive package performs better than other EP and antiwear additives because of its unique action on frictional surfaces. Castrol Tribol OG 500-0 is approved by major original equipment manufacturers. Castrol Tribol OG 500-0 is manufactured from mineral oil, selected for optimum physical and chemical stability, blended with special adhesive agents and thickened with aluminum-complex soap. The TGOA additive package is activated by high specific loads and corresponding temperatures causing a chemical-physical reaction. This results in an equalization of surface roughness without creating abrasion. Therefore, surface roughnesses are reduced without the loss of surface material. The results of the TGOA additives can be compared with a rolling process in the micro-range. The surface roughnessess are gradually leveled and smoothed. The load carrying area is increased with increased safety loads on tooth flanks at reduced friction levels. If, because of shock loads or stop-and-go operation, surface roughness peaks redevelop, the TGOA additive package is automatically reactivated. Surface roughness is again equalized and lubrication optimized.
