Gear

   Gear is used in machinery to transfer power, change the rotation and change the speed of the transmission parts, Tractor central transmission gear work is relatively heavy,in order to ensure its normal work and extend the service life, must ensure that the central transmission gear has the correct meshing position, otherwise it will cause noise, tooth surface easy to peel off and gear easy to break the consequences. The adjustment mainly includes two parts: the clearance of bevel gear shaft and the meshing position of bevel gear pair. First, the clearance of bevel gear bearing is adjusted, and then the meshing position is adjusted.