The performance of gear lubrication oil is required to be improved gradually with the development of gear equipments and the change of application environment.The development of gear oil undergoes a long process in which the lower performance is developed higher and on time oil-exchange is developed to maintenance-free.High performance gear oil can be separated from high performance additive agents and their composition

and therefore the development of additive agent of gear lubrication oil is the base of future high performance gear oil.With the completion of standardization of gear oil

the usage will become more standard.To meet the requirement of environment protection

synthetic oil which can be decomposed and plant oil also begin to be applied in industrial gears.