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Quality control A.F.B.M.A.* GRADE TOLERANCES AND TERMINOLOGY. Translate in Um
 
GRADE TOLERANCE CHART Print the .pdf file
 
A.F.B.M.A.
grade
Diameter Tolerance
per Ball Sphericity
Diameter Tolerance
per Unit Container
Basic Diameter
Tolerance
Surface Roughness Ra
  inch inch inch inch
3 0.000003 (+ /-)0.000005 (+ /-) 0.00002 (+ /-) 0.0000003
4 0.000004 (+ /-)0.000004 (+ /-) 0.00002 (+ /-) 0.0000003
5 0.000005 (+ /-)0.000006 (+ /-) 0.00004 (+ /-) 0.0000003
10 0.000010 (+ /-)0.000010 (+ /-) 0.0001 (+ /-) 0.0000004
15 0.000015 (+ /-)0.000015 (+ /-) 0.0001 (+ /-) 0.0000004
25 0.000025 (+ /-)0.000025 (+ /-) 0.0001 (+ /-) 0.0000004
50 0.000050 (+ /-)0.000050 (+ /-) 0.0002 (+ /-) 0.0000008
100 0.000100 (+ /-)0.000100 (+ /-) 0.0004 (+ /-) 0.0000015
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