* ONE OF THE FOLLOWING SUFFIXES MUST BE ADDED
SUFFIX – STEEL, HEAT TREATMENT AND COATING
M – S.A.E. 8620, 58-62 Rc, 0.5-0.7mm DEEP AFTER GRINDING
MT – S.A.E. 8620, 58-62 Rc, 0.5-0.7mm DEEP
AFTER GRINDING, TITANIUM NITRIDE,
1 TO 2 MICRONS THICK ON SURFACES
ABOVE THE -A- DATUM (MINIMUM SURFACES).
COATING PROCESS SHALL NOT
NEGATIVELY IMPACT PIN HARDNESS
MH – H13, 48-52 Rc
MA – A2, 48-52 Rc