| Established in 1952 | |
Page: 1810 |
| Grade | Allowable Ball Diameter Variation | Deviation From Spherical Form | Surface Roughness Arithmetical Average | Basic Diameter Tolerance | Allowable Lot Diameter Variation |
| 3 | 3 u" .000003" |
3 u" .000003" |
.5 u" .0000005" |
30 u" +/-.00003" |
5 u" .000005" |
| 5 | 5 u" .000005" |
5 u" .000005" |
.8 u" .0000008" |
50 u" +/-.00005" |
10 u" .00001" |
| 10 | 10 u" .00001" |
10 u" .00001" |
1.0 u" .000001" |
100 u" +/-.0001" |
20 u" .00002" |
| 15 | 15 u" .000015" |
15 u" .000015" |
1.0 u" .000001" |
100 u" +/-.0001" |
30 u" .00003" |
| 16 | 16 u" .000016" |
16u" .000016" |
1.0 u" .000001" |
100 u" +/-.0001" |
32 u" .000032" |
| 24 | 24 u" .000024" |
24 u" .000024" |
2.0 u" .000002" |
100 u" +/-.0001" |
48 u" .000048" |
| 25 | 25 u" .000025" |
25 u" .000025" |
2.0 u" .000002" |
100 u" +/-.0001" |
50 u" .000048" |
| 48 | 48 u" .000048" |
48 u" .000048" |
3.0 u" .000003" |
200 u" +/-.0002" |
96 u" .000096" |
| 50 | 50 u" .000050" |
50 u" .000050" |
3.0 u" .000003" |
300 u" +/-.0003" |
100 u" .0001" |
| 100 | 100 u" .0001" |
100 u" .0001" |
5.0 u" .000005" |
500 u" +/-.0005" |
200 u" .0002" |
| 200 | 200 u" .0002" |
200 u" .0002" |
8.0 u" .000008" |
1000 u" +/-.001" |
400 u" .0004" |
| 300 | 300 u" .0003" |
300 u" .0003" |
1000 u" +/-.001" |
600 u" .0006" |
|
| 500 | 500 u" .0002" |
500 u" .0002" |
2000 u" +/-.002" |
2000 u" +/-.002" |
|
| 1000 | 1000 u" .001" |
1000 u" .001" |
2000 u" +/-.002" |
2000 u" +/-.002" |
|
| 2000 | 2000 u" .002" |
2000 u" .002" |
5000 u" +/-.005" |
2000 u" +/-.002" |
|
| 3000 | 3000 u" .003" |
3000 u" .003" |
5000 u" +/-.005" |
6000 u" +/-.006" |
ALLOWABLE BALL DIAMETER VARIATION is the largest variation in diameter found in any one ball from the sample lot inspection.
ALLOWABLE DEVIATION FROM SPHERICAL FORM is the
greatest radial distance in any radial plane between a sphere
circumscribed around the ball surface and any point on the ball
surface.
SURFACE ROUGHNESS is all those irregularities
which form the surface relief but are not deviations of form or
waviness. The measurement of this characteristic is to be made
with equipment meeting the requirements of and in accordance
with Standard ANSI B46.1.
BASIC DIAMETER TOLERANCE is the maximum allowable
deviation in any ball mean diameter from the basic diameter
ordered.
ALLOWABLE LOT DIAMETER VARIATION is the
difference between the mean diameter of the largest ball and
that of the smallest ball in the lot.
1550 E. Slauson Ave. Los
Angeles, CA 90011, USA
Phone 323-582-7348, 800-322-5832, FAX 800-883-1109
www.precisionballs.com
http://www.precisionballs.com/ |
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