Steel Ball Dimensional Precision |
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Grade |
VDWL Lot Dia Varation |
Gauge Interval |
Preferred Gauge |
Sub gauge Interval |
Sub gauge |
3 |
0.13 |
0.50 |
(-5,
,-0.5,0,+0.5
,+5) |
0.10 |
-0.2-0.1+0.1+0.2 |
5 |
0.25 |
1.00 |
(-5,
,-1,0,+1
,+5) |
0.20 |
-0.4,-0.2,0,+0.2,+0.4 |
10 |
0.50 |
1.00 |
(-9,
,-1,0,+1
,+9) |
0.20 |
-0.4,-0.2,0+0.2,+0.4 |
16 |
0.80 |
2.00 |
(-10,
,-2,0,+2
,+10) |
0.40 |
-0.8,-0.4,0,+0.4,+0.8 |
20 |
1.00 |
2.00 |
(-10,
,-2,0,+2
,+10) |
0.40 |
-0.8,-0.4,0,+0.4,+0.9 |
28 |
1.40 |
2.00 |
(-12,
,-2,0,+2
,+12) |
0.40 |
-0.8,-0.4,0,+0.4,+0.10 |
40 |
2.00 |
4.00 |
(-16,
,-4,0,+4
,+16) |
0.80 |
-1.6,-0.8,0,+0.8,+1.6 |
60 |
3.00 |
5.00 |
(-20,
,-5,0,+5
,+20) |
1.00 |
-2,-1,0,+1,+2 |
100 |
5.00 |
10.00 |
(-40,
,-10,0,+10
,+40) |
2.00 |
-4,-2,0,+2,+4 |
200 |
10.00 |
15.00 |
(-60,
,-15,0,+15
,+60) |
3.00 |
-6,-3,0,+3,+6 |
Steel
Ball Geometric Precision |
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Grade |
VDWL Lot Dia Varation |
?Sph Deviation From Sphericai From |
Surface Roughness |
3 |
0.08 |
0.08 |
0.012 |
5 |
0.13 |
0.13 |
0.02 |
10 |
0.25 |
0.25 |
0.025 |
16 |
0.40 |
0.40 |
0.032 |
20 |
0.50 |
0.50 |
0.04 |
28 |
0.70 |
0.70 |
0.05 |
40 |
1.00 |
1.00 |
0.08 |
60 |
1.50 |
1.50 |
0.1 |
100 |
2.50 |
2.50 |
0.125 |
200 |
5.00 |
5.00 |
0.2 |
Diameter |
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|
inch |
mm |
kgs per 1000pcs |
No. of Ball per kg |
|
|
|
|
- |
0.5000 |
0.0005 |
1960784.31 |
- |
0.6800 |
0.0013 |
781250.00 |
- |
0.8000 |
0.0021 |
478468.90 |
- |
1.0000 |
0.0041 |
245098.04 |
- |
1.2000 |
0.0071 |
141843.97 |
- |
1.3000 |
0.0089 |
111982.08 |
- |
1.4000 |
0.0124 |
80645.16 |
1/6 |
1.5875 |
0.0160 |
62500.00 |
- |
1.7500 |
0.0218 |
45871.56 |
- |
2.0000 |
0.0326 |
30674.85 |
3/32 |
2.3812 |
0.0550 |
18181.82 |
- |
2.5000 |
0.6370 |
1569.86 |
- |
3.0000 |
0.1100 |
9090.91 |
1/8 |
3.1750 |
0.1300 |
7692.31 |
- |
3.5000 |
0.1700 |
5882.35 |
5/32 |
3.9688 |
0.2500 |
4000.00 |
- |
4.0000 |
0.2600 |
3846.15 |
3/16 |
4.7625 |
0.4400 |
2272.73 |
- |
5.0000 |
0.5100 |
1960.78 |
13/64 |
5.1594 |
0.5600 |
1785.71 |
7/32 |
5.5562 |
0.6990 |
1430.62 |
15/64 |
5.9531 |
0.8600 |
1162.79 |
- |
6.0000 |
0.8800 |
1136.36 |
1/4 |
6.3500 |
1.0400 |
961.54 |
- |
6.5000 |
1.1190 |
893.66 |
17/64 |
6.7469 |
1.2500 |
800.00 |
9/32 |
7.1438 |
1.4900 |
671.14 |
5/16 |
7.9375 |
2.0400 |
490.20 |
- |
8.0000 |
2.0900 |
478.47 |
- |
8.5000 |
2.5000 |
400.00 |
11/32 |
8.7312 |
2.7100 |
369.00 |
- |
9.0000 |
2.9700 |
336.70 |
3/8 |
9.5250 |
3.5200 |
284.09 |
- |
10.0000 |
4.0800 |
245.10 |
13/32 |
10.3188 |
4.4800 |
223.21 |
- |
11.0000 |
5.4200 |
184.50 |
7/16 |
11.1125 |
5.5600 |
179.86 |
- |
11.5000 |
6.2200 |
160.77 |
29/64 |
11.5094 |
6.2200 |
160.77 |
15/32 |
11.9062 |
6.8800 |
145.35 |
- |
12.0000 |
7.0400 |
142.05 |
31/64 |
12.3031 |
7.6000 |
131.58 |
1/2 |
12.7000 |
8.3500 |
119.76 |
17/32 |
13.4938 |
10.0000 |
100.00 |
- |
14.0000 |
11.1800 |
89.45 |
9/16 |
14.2875 |
11.9000 |
84.03 |
19/32 |
15.8120 |
14.0000 |
71.43 |
5/8 |
15.8750 |
16.3000 |
61.35 |
- |
16.0000 |
16.6900 |
59.92 |
21/32 |
16.6688 |
18.9000 |
52.91 |
- |
17.0000 |
20.2000 |
49.50 |
11/16 |
17.4625 |
21.7000 |
46.08 |
23/32 |
18.2562 |
24.8000 |
40.32 |
- |
19.0000 |
27.9600 |
35.77 |
3/4 |
19.0500 |
28.2000 |
35.46 |
25/32 |
19.8438 |
31.9000 |
31.35 |
13/16 |
20.6375 |
35.8000 |
27.93 |
- |
21.0000 |
37.7500 |
26.49 |
27/32 |
21.4313 |
40.1000 |
24.94 |
7/8 |
22.2250 |
44.8000 |
22.32 |
- |
23.0000 |
49.5900 |
20.17 |
29/32 |
23.0188 |
49.8000 |
20.08 |
15/16 |
23.8125 |
55.1000 |
18.15 |
- |
24.0000 |
56.3400 |
17.75 |
31/32 |
24.6063 |
60.8000 |
16.45 |
- |
25.0000 |
63.6800 |
15.70 |
1 |
25.4000 |
66.8000 |
14.97 |
1 1/32 |
26.1938 |
73.3000 |
13.64 |
1 1/16 |
26.9875 |
80.2000 |
12.47 |
1 3/32 |
27.7812 |
87.4000 |
11.44 |
- |
28.0000 |
89.4700 |
11.18 |
1 1/8 |
28.5750 |
95.2000 |
10.50 |
1 3/16 |
30.1625 |
112.0000 |
8.93 |
1 1/4 |
31.7500 |
131.0000 |
7.63 |
- |
32.0000 |
133.6000 |
7.49 |
1 5/16 |
33.3375 |
151.1000 |
6.62 |
- |
34.0000 |
160.2000 |
6.24 |
1 3/8 |
34.9250 |
174.0000 |
5.75 |
- |
35.0000 |
174.7500 |
5.72 |
1 13/32 |
35.7188 |
184.0000 |
5.43 |
1 7/16 |
36.5125 |
198.0000 |
5.05 |
1 15/32 |
37.3062 |
216.0000 |
4.63 |
1 1/2 |
38.1000 |
225.0000 |
4.44 |
1 9/16 |
39.6875 |
255.0000 |
3.92 |
- |
40.0000 |
260.0000 |
3.85 |
1 5/8 |
41.2750 |
287.0000 |
3.48 |
- |
42.0000 |
302.0000 |
3.31 |
1 11/16 |
42.8625 |
321.2000 |
3.11 |
1 3/4 |
44.4500 |
358.3000 |
2.79 |
- |
45.0000 |
371.4000 |
2.69 |
1 7/8 |
47.6250 |
440.5000 |
2.27 |
- |
48.0000 |
450.7000 |
2.22 |
2 |
50.8000 |
534.8000 |
1.87 |
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