Name of the part or assembly unit
Marking
OIL FEED DRIVE GEAR
7511.1011040
Material
Hardness
Steel 40ХFА GOST 4543-71
Nitrogen hardening
241...286 HB
≥575HV
h 0.25…0.5 mm
N
u
m
b
er o
f
th
e d
ef
ect
L
oc
at
ion o
f
th
e p
ic
tu
re
Possible defect
Way for defect detection and
means of control
Dimension and parameter, mm
Conclusion
nominal
maximum allowable
without repair
without repair
1
1
Cracks, breaks
Inspection
-
-
-
To reject
2
2
Chipping of the working
surface of the teeth
(pitting)
Ruler-300
GOST 427-75
-
Square
50 mm
2
-
To reject
3
3
Wear of the outer surface
Micrometer
d
To reject
42,83
-
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Page 193: ...N u M a r Method defect detection and Dimension and parameter mm...
Page 201: ...4 Thread stripping M16 1 5 6H no more than two threads Inspection To calibrate the thread...