I need a bunch of little O rings for my Mazak lathe...
There's two O rings on each plunger, six plungers on the turret. Everything else is metric on this machine so I assume these are also. The ring slots in the plunger measure 6.95 mm ID 9.96 mm OD and 2.6mm wide. The bore the plungers slide in look to be an even 10mm.The O ring itself measures 1.75mm cross section after drying it out.
McMasterCarr has a: 1.5mm wide by 7 ID, 1.6mm wide by 7.1 ID, and a 2mm wide by 7 ID.
In English units, I've got steel at 0.273ID, 0.394OD, .100 wide. O ring measures 0.069. Awful close to 0.0625 or 1/16" and McMaster says 1/16 measures 0.070 actual.
McMasterCarr has a 1/4"ID by" 3/8 OD in English.
Which O ring should I get?