Thanks IRstuff. Your point sounds reasonable. however, how about for lotion pumps,perfume dispensors, home chemical or disposable items which sealing requirements are looser? "Fair" spherocity may be good enough for such applications. Then, the cost of rubber balls may be less than stainless...
thanks. Monkeydog. Yes, this definately is one of the considerations. I think proper choice of the rubber material can overcome this problem. I'm wondering whether a rubber ball can not seal as good as the stainlessball does? or the automatic assembly line for stainless balls will not be...
Currently,Saintless balls(304/316)are commonly used in lotion pump/ spary / dispenser. Is it possible to use a rubber ball to replace the stainless ball? Any considerrations on the performance or in the assembling process? Thanks