This two products is from Gearbox in MF285 Tractor which is popular in India, Middle East, and South America. We are the OE factory to supply these products. With stable technical power, and strict quality control, our products have good reputation in domestic and over seas.A gear design optimization approach applied to reduce tooth contact temperature and noise excitation of a high-speed Spur Gear pair running without lubricant. Optimum gear design search was done using the Run Many Cases software program. Thirty-one of over 480,000 possible gear designs were considered, based on low contact temperature and low transmission error. The best gear design was selected considering its manufacturability.