G0509G Precision Lathe Inspection Record
-4-
No.
Diagram of Measuring
Method
Allowed Tolerances
Typical
Measured
Value (mm)
Typical
Measured
Value (inch)
G15
Lead screw cam action
0.015mm (0.0006")
0.01mm
0.0003"
P1
Accuracy of outside round cutting:
a. Roundness: 0.005mm
b. Cylindricity: 0.02mm (0.0007") in
200mm (7.874")
0.003mm
0.01mm
0.0001"
0.0003"
P2
Flatness of face for finishing cutting:
0.025mm (0.001") on the diameter of
300mm (11.811")
0.015mm
0.0005"
P3
Accuracy of pitch of leadscrew thread
0.04mm (0.0015") in 200mm (7.874")
0.02mm (0.0007") in 50mm (1.968")
0.02mm
0.01mm
.0007"
.0003"
