Heavy loaded open gears such as Ball, Rod, Semi-Autogenous (SAG) and Autogenous (AG) Mill drives, Kiln and rotary drum drives in Cement plants, Power station(coal way), Mining, Chemical plants, etc...Open gears, rack,located on slew rings, drag and hoist drums on draglines, shovels and excavators etc...Could be apply by automatic or manual lubrication systems.