From the principle of filler sealing, there are three channels that fluids can leak in the sealing cavity: one is that the fluid penetrate dense sealing material causes leaks; the other is to leak between the filler and the filler box; the third is from the filler and axis. Leakage between the surface. There are several main faults and reasons:

A. The outer surface of the filler is developed.

B. When the filling is squeezed into the gap between the shaft and the block or a shaft and the cover, it is mostly because the design of the design is too large or eccentric.

C. The medium is leaked along the cover cover of the filling because the fillers are not properly assembled or the block is damaged.

D. Excessive leakage can no longer be adjusted because the filler expansion or destruction, the filler is too short or the assembly is incorrect.