|
 |
Technical Parameters |
|
|
|
Grade of Tolerance and Technical Parameters:
Grade
|
Variation of ball diameter |
Deviation of ball shape |
Coarseness of ball surface |
Variation of ball diameter |
Fundamental tolerance of diameter |
| Vdws |
△Sph |
Ra |
Vdwl |
Tdn |
| ≤ |
| um |
| 10 |
0.25 |
0.25 |
0.025 |
0.5 |
* |
| 16 |
0.4 |
0.4 |
0.032 |
0.8 |
* |
| 20 |
0.5 |
0.5 |
0.05 |
1 |
* |
| 28 |
0.7 |
0.7 |
0.05 |
1.5 |
* |
| 40 |
1.0 |
1.0 |
0.08 |
2 |
* |
| 60 |
1.5 |
1.5 |
0.10 |
3 |
* |
| 100 |
2.5 |
2.5 |
0.125 |
5 |
±12.5 |
| 200 |
5 |
5 |
0.2 |
10 |
±25 |
| 500 |
13 |
13 |
* |
25 |
±50 |
| 1000 |
25 |
25 |
* |
50 |
±125 |
Technical Parameters of Vibration:
Precision Grade
Vibration Classification
Ball Diameter |
G20 |
G16 |
G10G5G3 |
| |
|
|
| Z1 |
Z2 |
Z3 |
| ＞ |
＝ |
Average Value |
Single Value |
Average Value |
Single Value |
Average Value |
Single Value |
| 4.5 |
6.5 |
39.5 |
41.5 |
37.5 |
39.5 |
35.5 |
37.5 |
| 6.5 |
7.5 |
40 |
42 |
38 |
40 |
36 |
38 |
| 7.5 |
10 |
40.5 |
42.5 |
38.5 |
40.5 |
36.5 |
38.5 |
| 10 |
11 |
42 |
44 |
40.5 |
42.5 |
36.5 |
40.5 |
| 11 |
12 |
42.5 |
44.5 |
41 |
43 |
39 |
41 |
| 121 |
13 |
43 |
45 |
41.5 |
43.5 |
39.5 |
41.5 |
| 13 |
14 |
43.5 |
45.5 |
42 |
44 |
40 |
42 |
| 14 |
15 |
44 |
46 |
42.5 |
44.5 |
40.5 |
42.5 |
| 15 |
16 |
44.5 |
46.5 |
43.5 |
44.5 |
40.5 |
42.5 |
| 16 |
17 |
45 |
47 |
43 |
45 |
41 |
43 |
| 17 |
17.5 |
45.5 |
47.5 |
43 |
45 |
41 |
43 |
Case Depth of Carbon Steel Ball:
|
Nominal Size
|
Minimum Hardened Layer
|
|
≥
|
＜
|
|
|
|
|
0.3
|
1.5
|
0.1
|
|
15
|
2.0
|
0.4
|
|
2.0
|
3.0
|
0.5
|
|
3.0
|
4.5
|
0.6
|
|
4.5
|
5.5
|
0.8
|
|
5.5
|
6.5
|
0.9
|
|
6.5
|
9.5
|
1.1
|
|
9.5
|
11.0
|
1.4
|
|
11.0
|
12.5
|
1.7
|
|
12.5
|
14.0
|
1.8
|
|
14.0
|
19.0
|
1.9
|
|
19.0
|
38.0
|
2.0
|
Vibration, Normal Specified Value, Single Specified Value of
Diameter of Batch Balls:
|
Grade
|
Vibration of Diameter of Batch Balls
|
Spacing Interval of Specified Value
|
Normal Specified Value |
Spacing Interval of Single Specified
Value |
Single Specified Value
|
|
|
|
|
|
|
|
10
|
0.5
|
1
|
-9,…-1,0,+1,…+9
|
0.2
|
-0.4,-0.2,0,+0.2,+0.4
|
|
16
|
0.8
|
2
|
-10,…-2,0,+2,…,+10
|
0.4
|
-0.8,-0.4,0,+0.4,+0.8
|
|
20
|
1
|
2
|
-10,…,-2,0,+2,…,+10
|
0.4
|
-0.8,-0.4,0,+0.4,+0.8
|
|
28
|
1.4
|
2
|
-12,…-2,0,+2,…,+12
|
0.4
|
-0.8,-0.4,0,+0.4,+0.8
|
|
40
|
2
|
4
|
-16,…-4,0,+4,…,+16
|
0.8
|
-1.6,-0.8,0,+0.8,+1.6
|
|
60
|
3
|
5
|
-20,…,-5,0,+5,…,+20
|
1
|
-2,-1,0,+1,+2
|
Vibration, Normal Specified Value,
Single Specified Value of Diameter of Batch Balls:
|
| Grade |
Vibration of Diameter of Batch Balls |
Spacing Interval of Specified Value |
Normal Specified Value |
Spacing Interval of Single Specified Value
|
Single Specified Value |
| |
|
|
|
|
| 10 |
0.5 |
1 |
-9,…-1,0,+1,…+9 |
0.2 |
-0.4,-0.2,0,+0.2,+0.4 |
| 16 |
0.8 |
2 |
-10,…-2,0,+2,…,+10 |
0.4 |
-0.8,-0.4,0,+0.4,+0.8 |
| 20 |
1 |
2 |
-10,…,-2,0,+2,…,+10 |
0.4 |
-0.8,-0.4,0,+0.4,+0.8 |
| 28 |
1.4 |
2 |
-12,…-2,0,+2,…,+12 |
0.4 |
-0.8,-0.4,0,+0.4,+0.8 |
| 40 |
2 |
4 |
-16,…-4,0,+4,…,+16 |
0.8 |
-1.6,-0.8,0,+0.8,+1.6 |
| 60 |
3 |
5 |
-20,…,-5,0,+5,…,+20 |
1 |
-2,-1,0,+1,+2 |
|
| |
| Conversion Table of Size and
Weight |
|
Diameter of Ball
|
Per 1000 Steel Balls
|
Per 1,000g Steel Balls
|
Diameter of Ball
|
Per 1000 Steel Balls
|
Per 1,000g Steel Balls |
Diameter of Ball
|
Per 1000 Steel Balls
|
Per 1,000g Steel Balls |
|
mm in
|
Weight (kg)
|
Number of Ball
(Approx.)
|
mm in
|
Weight (kg)
|
Number of Ball
(Approx.)
|
mm in
|
Weight (kg)
|
Number of Ball
(Approx.)
|
|
0.5000
|
0.00051
|
1960780
|
8.0000
|
2.09
|
478
|
20.637013/16
|
35.8
|
27.9
|
|
0.6800
|
0.00128
|
781250
|
8.5000
|
2.5
|
400
|
21.0000
|
37.75
|
26.49
|
|
0.8000
|
0.00209
|
478470
|
8.731211/32
|
2.71
|
369
|
21.4313 27/32
|
40.1
|
24.9
|
|
1.0000
|
0.00408
|
245100
|
9.0000
|
2.97
|
337
|
22.2250 7/8
|
44.8
|
22.3
|
|
1.2000
|
0.00705
|
141840
|
9.5250 3/8
|
3.52
|
284
|
23.0000
|
49.95
|
20.17
|
|
1.3000
|
0.00893
|
111980
|
10.0000
|
4.08
|
245
|
23.0188 29/32
|
49.8
|
20.1
|
|
1.4500
|
0.0124
|
80645
|
10.3188 13/32
|
4.48
|
223
|
23.8125 15/16
|
55.1
|
18.2
|
|
1.5880 1/16
|
0.016
|
62350
|
11.0000
|
5.42
|
185
|
24.0000
|
56.34
|
17.75
|
|
1.7500
|
0.0218
|
45871
|
11.1125 7/16
|
5.60
|
179
|
24.6063 31/32
|
60.8
|
16.5
|
|
2.0000
|
0.0325
|
30700
|
11.5000
|
6.22
|
161
|
25.0000
|
63.68
|
15.70
|
|
2.3812 3/32
|
0.055
|
18182
|
11.5094 29/64
|
6.22
|
161
|
25.40000 1
|
66.89
|
15
|
|
2.5000
|
0.0637
|
15698
|
11.9062 15/32
|
6.88
|
145
|
26.9875 1'/32
|
73.3
|
13.64
|
|
3.0000
|
0.110
|
9091
|
12.0000
|
7.04
|
142
|
26.9875 1'/16
|
80.2
|
12.47
|
|
3.1750 1/8
|
0.131
|
7634
|
12.303131 /64
|
7.60
|
132
|
27.7812 1'/32
|
87.4
|
11.4
|
|
3.5000
|
0.175
|
5717
|
12.7000 1/2
|
8.35
|
120
|
28.0000
|
89.47
|
11.18
|
|
3.9688 5/32
|
0.255
|
3922
|
13.4938 17/32
|
10.0
|
100
|
28.5750 1'/8
|
95.2
|
10.50
|
|
4.0000
|
0.261
|
3831
|
14.0000
|
11.18
|
89
|
30.1625 1'/16
|
112
|
8.93
|
|
4.7625 3/16
|
0.441
|
2268
|
14.2875 9/16
|
11.9
|
84.0
|
|
|
|
|
5.0000
|
0.510
|
1961
|
15.0812 19/32
|
14.0
|
71.4
|
|
|
|
|
5.1594 13/64
|
0.560
|
1786
|
14.8750 5/8
|
16.3
|
61.3
|
|
|
|
|
5.5562 7/32
|
0.699
|
1431
|
16.0000
|
16.69
|
59.9
|
|
|
|
|
5.9531 15/64
|
0.860
|
1163
|
16.6688 21/32
|
18.9
|
52.9
|
|
|
|
|
6.0000
|
0.881
|
1136
|
17.0000
|
20.02
|
50
|
|
|
|
|
6.3500 1/4
|
1.04
|
962
|
17.4625 11/16
|
21.7
|
46.1
|
|
|
|
|
6.5000
|
1.119
|
894
|
18.2562 23/32
|
24.8
|
40.3
|
|
|
|
|
6.7469 17/64
|
1.25
|
800
|
19.0000
|
27.96
|
35.77
|
|
|
|
|
7.1438 9/32
|
1.49
|
671
|
19.0500 3/4
|
28.2
|
355
|
|
|
|
|
7.9372 5/16
|
2.04
|
490
|
19.8438 25/32
|
31.9
|
31.4
|
|
|
|
|
| |
|
|
|
