G4
Spindle
bore
axis
runout
a
)
Close
to
spindle
surface
b
)
at
a
distance
of
L
to
spindle
surface
L=200
a
)
0.02
b
)
0.035
a
)
0.10/300*
(
a≤90°
)
b
)
0.10/300*
G6
G5
a
)
0.1/300*
(
a≤90°
)
b
)
0.06/300*
Distance between two contacts of indicator probe
α
a
b
α
a
b
L
b
a
Certificate of Inspection
Total 3
Page 2
Precision Inspection Record
Germetrical Precision Test:
Item
No.
Brief Drawing
Allowance
(mm)
Precision
Actual
Test
Perpendicularity
of the spindle
axis to work
table surface
Perpendicularity
of the spindle
axis to Base
plate table
surface
Page 30
Instruction Manual for GHD-50 (D178)
23/12/2014