Car manual gearbox is a speed variation device which is used to change the rotating speed conveyed from car engines to driving wheels. Generally, gearbox utilize the meshing drive power from various gears with different modulus to realize the changes of rotating speed, so we could know that when a pair of gears meshing and driving,the rotating speed could change, meanwhile,the more modulus,the rotating speed slower.
Powder metallurgy gears are the key structure components used on manual gearbox, follow on the strenght and mechanical properties requirement of manual gearbox, the load of powder metallurgy gears is on components surface or close to surface, so it is no need to reach a pretty high density like forging or CNC Machining components. So we often require a high strength and good abrasive resistance properties onthe surface of powder metallurgy gears.
Generally, if we could not reach the structure precision on powder metallurgy gears, then it's lifetime and load skill would decline and the noise would increase. Thus the precision class of gearbox gears often be required to above DIN7.
Sints company could produce various gears using iron and other alloy material conform to SMF and MPIF standards, any OEM structures are feasiable, such as spur gears,bevel gears and so on.
We have been on this business for more than 22 years, providing the products for over 30 countries all over the world.
