11
4. Accuracy Standard
（
Unit
：
mm
）
Inspection Item
Allowable
Value
1
Run out of table reference hole
0.010
2
Run out of table top face during table rotation
0.015
3
Straightness of table top face (to be concave side.)
Total length
0.010
4
Parallelism of table top face and mounting reference face
(tilting axis direction)
Total length
0.020
5
Parallelism of table top face and guide block center line
(Tilting angle : 90°)
Total length
0.020
6
Parallelism of tilting axis center line and mounting
reference face
Total length
0.020
7
Indexing accuracy
Rotating axis
Cumulative
20 sec
Tilting axis
Cumulative
60 sec
8
Repeatability
Cumulative
4 sec
1
2
3
4
5
6
7,8 Index accuracy is measured with the optical device.
