1.There is a certain plastic, under the effect of the compression force can produce a certain radial force and contact with the close shaft.
2.There is enough chemical stability, non polluting media, the filler is not the medium foam expansion, filler in the impregnation agent is not dissolved, the filler itself is not corrosive sealing surface.
3.Filler self lubrication performance is good, wear resistance, friction coefficient is small.
4.There is a small amount of axis offset, the filler should have enough flexibility.
5. Simple manufacture, convenient filling
To this end, often need to fill the compression level to adjust, after packing the lubricant in the running for a period of time has been lost, and then squeezed out some lubricant, pressing force relaxation while compensating for volume changes caused by filling. Of course, such a regular squeeze filler, and finally will make the dipping agent depleted, so the regular replacement of filler is necessary. In addition, in order to maintain the liquid film and take away the friction heat, to allow a small amount of leakage is also necessary.
