There must be no mechanical damage or casting defects in cracks, holes, etc. in any part of the agricultural gearbox.
The surface of the machine gear box should be kept clean and the shaft surface finish should be no less than 76.
The ellipticity of each shaft hole in the agricultural machinery gearbox is not more than 0.015 ~ 0.02 mm.
The centerline irregularity of each shaft hole is not more than 0.04 mm and the length is 100 mm.
The distance between the shafts of the agricultural machinery gearbox.
The relationship between the bearing hole of the agricultural gearbox and the bearing housing.