Oil Leakage and Solution of Ball-and-Nut Power Steering Gear

The common problems of ball-and-nut power steering gear oil leakage were analyzed.It was pointed out that the major reason of steering gear oil leakage was the system matching problem,unsuitable design of the seal structure,manufacturing variation and assembly error.Starting with system matching and seal structure,the steering system was matched again,the seal structure of quadrant shaft,upper and side cover and the plug structure were improved.The oil leakage problem of ball-and-nut power steering gear is well solved.