Hi All,

      If you go to http://www.mcmaster.com/ and type in 'Bearing Balls', they 
have a wide range of SS balls suitable for use either as the ball end for 
mounting bolts, or for seismometer suspensions. 

       If you type 'tungsten carbide' there are ranges of solid carbide rods 
which look suitable for making 'crossed cylinder' bearings for seismometers 
and also solid carbide bearings. 

       The only thing missing was a small solid triangular carbide tool tip 
for lathe work. These make suitable mountings for 'ball on a plane' 
suspensions, but they can be bought from other engineering suppliers.

       They carry a range of shim materials in bronze, stainless steel and 
nickel alloy.

       Regards,

       Chris Chapman
Hi All,



      If you go to http://www.mcmaster.com/ and=
 type in 'Bearing Balls', they have a wide range of SS balls suitable for us=
e either as the ball end for mounting bolts, or for seismometer suspensions.=
=20



       If you type 'tungsten carbide' ther=
e are ranges of solid carbide rods which look suitable for making 'crossed c=
ylinder' bearings for seismometers and also solid carbide bearings.=20



       The only thing missing was a small=20=
solid triangular carbide tool tip for lathe work. These make suitable mounti=
ngs for 'ball on a plane' suspensions, but they can be bought from other eng=
ineering suppliers.



       They carry a range of shim material=
s in bronze, stainless steel and nickel alloy.



       Regards,



       Chris Chapman