yang686526

shaft taper fit - tolerance spec or area of contact
looking through various en and iso standards has not helped. if the shaft or hub is blued and fitted together [rotated] a percentage area of the other component is marked.
i am looking for guidance on what would be an acceptable marked area? some publications for machine tool spindles state 80%! is there any basis for this or other values?
the actual taper is for a replacement hub with a 1/10 taper at 190 dia, at the small end, x 280 long and is used to support and fix a "disk" of 4000 kg.
check out our whitepaper library.
this may be not gettin getting attention because more detail is needed. do you have the specific standards you are referring to? do you have a sample drawing of the situation?
matt lorono
cad engineer/ecn analyst
silicon valley, ca