Ring Calibration - Orientation and Tolerances

 

ring

 

Tolerance Terms:

GO: Unilateral Minus Tolerance (e.g. 1.000" Class X GO ring tolerance would be 0.999940 - 1.000")

NO GO: Unilateral Plus Tolerance (e.g. 1.000" Class X NO GO ring tolerance would be 1.000 - 1.000060")

MASTER or SET: Bilateral (split) Tolerance (e.g. 1.000" Class X MASTER ring tolerance would be 0.999970 - 1.000030")

GAGEMAKERS' TOLERANCE CHART

ENGLISH

Size Range

Tolerance in Inches
Above

Up to & Including

 Class XXX Class XX Class X Class Y Class Z Class ZZ
0.020 0.825 0.000010 0.000020 0.000040 0.000070 0.000100 0.000200
0.825 1.510 0.000016 0.000030 0.000060 0.000090 0.000120 0.000240
1.510 2.510 0.000020 0.000040 0.000080 0.000120 0.000160 0.000320
2.510 4.510 0.000025 0.000050 0.000100 0.000150 0.000200 0.000400
4.510 6.510 0.000033 0.000065 0.000130 0.000190 0.000250 0.000500
6.510 9.010 0.000040 0.000080 0.000160 0.000240 0.000320 0.000640

METRIC

Size Range

Tolerance in Millimeters
Above

Up to & Including

 Class XXX Class XX Class X Class Y Class Z Class ZZ
0.74 20.96 0.00025 0.00051 0.00102 0.00178 0.00254 0.00508
20.96 38.35 0.00041 0.00076 0.00152 0.00229 0.00305 0.00610
38.35 63.75 0.00051 0.00102 0.00203 0.00305 0.00406 0.00813
63.75 114.55 0.00064 0.00127 0.00254 0.00381 0.00508 0.01016
114.55 165.35 0.00084 0.00165 0.00330 0.00483 0.00635 0.01270
165.35 228.85 0.00102 0.00203 0.00406 0.00610 0.00813 0.01626
 
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