Bearing vibration & noise specification

Table 1
　

Bore
diameter
(mm)
Deep groove ball bearing accelerating vibration(dB)
Diameter seines(0)
Diameter seines(2)
Diameter seines(3)
Z
Z1
Z2
Z3
Z
Z1
Z2
Z3
Z4
Z
Z1
Z2
Z3
Z4
3
35
34
32
28
36
35
32
30
-
37
36
33
31
-
4
35
34
32
28
36
35
32
30
-
37
36
33
31
-
5
37
36
34
30
38
37
34
32
-
39
37
35
33
-
6
37
36
34
30
38
37
34
32
-
39
37
35
33
-
7
39
38
35
31
40
38
36
34
-
-
-
-
-
-
8
39
38
35
31
40
38
36
34
-
-
-
-
-
-
9
41
40
36
32
42
40
37
35
-
-
-
-
-
-
10
43
42
38
33
44
42
39
35
30
46
44
40
37
32
12
44
43
39
34
45
43
39
35
30
47
45
40
37
32
15
45
44
40
35
46
44
41
36
31
48
46
42
38
33
17
46
44
40
35
47
45
41
36
31
49
47
42
38
33
20
47
45
41
36
48
46
42
38
33
50
48
43
39
34
22
47
45
41
36
48
46
42
38
33
50
48
43
39
34
25
48
46
42
38
49
47
43
40
36
51
49
44
41
37
28
49
47
43
39
50
48
44
41
37
52
50
45
42
38
30
49
47
43
39
50
48
44
41
37
52
50
45
42
38
32
50
48
44
40
51
49
45
43
38
53
51
46
43
39
35
51
49
45
41
52
50
46
42
39
54
52
47
44
40
40
53
51
46
42
54
52
47
43
40
56
54
49
45
41
45
55
53
48
45
56
54
49
44
43
58
56
51
47
44
50
57
54
50
47
58
55
51
46
45
60
57
53
49
46
55
59
56
52
49
60
57
53
50
47
62
59
54
51
48
60
61
58
54
51
62
59
54
51
48
64
61
56
53
50


According to related standard, the vibration noise (dB) of bearigs for their vibration under acceleration are divided into four groups:Z1,Z2,Z3and Z4. Also they can be divided into four groups in according to vibration speed (u m/s):V1,V2,V3 and V4.
Normally, common bearings are delivered with Z1 group vibration value if no special requirement from customers while the bearings for export will be delivered with vibration Z2 group specification. However, please note your special requirement on vibratoin inyour order.
Single bearing vibration noise under acceleration (dB) specification is shown on table.
Single bearing vibration speed (u m/s) specification is shown on table.

Table2

Bore
diameter
(mm)
Deep groove ball bearing accelerating vibration (dB)
Diameter seines(0)
Diameter seines(2)
Diameter seines(3)
Z
Z1
Z2
Z
Z1
Z2
Z3
Z
Z1
Z2
Z3
65
49
48
46
50
49
47
42
51
50
48
43
70
50
49
47
51
50
48
43
52
51
49
44
75
51
50
48
52
51
49
44
53
52
50
45
80
52
51
49
53
52
50
45
54
53
51
46
85
53
52
50
54
53
51
46
56
55
52
47
90
54
53
52
56
55
53
48
58
57
54
49
95
56
55
54
58
57
55
50
60
59
56
51
100
58
57
56
60
59
57
52
62
61
58
53
105
60
59
58
62
61
59
54
64
63
60
55
110
62
61
60
64
63
61
56
66
65
62
57
120
64
63
62
66
65
63
58
68
67
64
59

　

Bore
diameter
(mm)
Deep groove ball bearing accelerating vibration (u m/s)
V1
V2
V3
V4
L
M
H
L
M
H
L
M
H
L
M
H
3
60
35
32
48
26
31
31
16
15
28
10
10
4
60
35
32
48
26
31
31
16
15
28
10
10
5
74
48
40
58
36
35
35
21
18
32
11
11
6
74
48
40
58
36
35
35
21
18
32
11
11
7
92
66
54
72
48
44
44
28
24
38
12
12
8
92
66
54
72
48
44
44
28
24
38
12
12
9
92
66
54
72
48
44
44
28
24
38
12
12
10
120
80
70
90
60
55
55
35
30
45
14
15
12
120
80
70
90
60
55
55
35
30
45
14
15
15
150
100
85
110
78
65
65
46
35
52
18
18
17
150
100
85
110
78
65
65
46
35
52
25
25
20
180
125
100
130
100
80
80
60
45
60
25
25
22
180
125
100
130
100
80
80
60
45
60
30
32
25
180
125
100
130
100
80
80
60
45
60
30
32
28
180
125
100
130
100
80
80
60
45
60
35
40
30
200
150
130
150
120
90
90
75
60
70
35
40
32
200
150
130
150
120
90
90
75
60
70
35
40
35
200
150
130
150
120
90
90
75
60
70
42
45
40
240
180
160
180
150
110
110
90
80
82
50
50
45
240
180
160
180
150
110
110
90
80
82
60
60
50
280
200
200
210
160
125
125
100
100
95
70
70
55
280
220
200
210
180
125
125
110
110
95
70
70
60
320
220
240
240
180
145
145
110
130
100
80
80
65
180
160
240
130
100
105
105
80
105
50
50
75
70
200
180
280
150
120
110
110
90
135
58
58
88
75
200
180
280
150
120
110
110
90
135
58
58
88
80
240
210
320
180
120
130
130
110
160
65
65
100
85
240
210
320
180
150
130
130
110
160
65
65
100
90
290
250
370
210
180
145
145
125
180
75
75
115
95
290
250
370
210
180
145
145
125
180
75
75
115
100
340
300
420
250
215
170
170
145
200
88
88
135
105
340
300
420
250
215
170
170
145
200
88
88
135
110
400
350
480
290
260
190
190
175
225
100
100
160
120
400
350
480
290
260
190
190
175
225
100
100
16