fre 2024-06-14 klockan 07:27 -0500 skrev Stuart Stevenson: > Gentlemen, > The press or temperature or impact (a BFH) question is - depends on what > equipment you have to facilitate the installation. > Liquid nitrogen is better than dry ice. Dry ice is ~-125F and liquid > nitrogen is ~320F. 2 inch steel will shrink ~.006in @ -320F from room > temperature. > A 2 inch bushing will rattle into a .002 undersize bore. You will still > have bushing ID distortion no matter how small the interference fit. Take > care of the distortion after the installation. > > The more important question is 'what is the running temperature of the > assembly and the coefficient of expansion of the materials'. If you are > putting a steel bushing in an aluminum plate you will want more > interference. Used brute force a hydraulic press. Some scratches on the bushing outside but gues maybe it is on the pillars.
> To answer the asked question I would say "Use a cylinder hone to size the > bore of the bushing as required". You don't want a glaze breaker ball hone. > You want to use a 4 stone cylinder hone. Bought 2 stone cylinder hone. Guess it work equally well as 4 stone hone but have to use it twice as long time. Already got one of the pillars inside, remove it fast and there will be a plopping sound. Regards Nicklas Karlsson _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
