| Noise Class |
| |
| Vibration noise values of bearings are represented by vibration acceleration level (dB) and classified according to standards as Z1, Z2, Z3 and Z4. |
| |
| Single bearing vibration acceleration level (dB) standards |
|
Bore Diameter(mm) |
Diameter series(0)(1) |
Diameter series(2) |
Diameter series(3) |
Axial load N |
|
Zi |
Z2 |
Z3 |
Zi |
Z2 |
Zs |
Z4 |
Zi |
Z2 |
Z3 |
Z4 |
|
3 |
34 |
32 |
28 |
35 |
32 |
30 |
- |
36 |
33 |
31 |
- |
30 |
|
4 |
34 |
32 |
28 |
35 |
32 |
30 |
- |
36 |
33 |
31 |
- |
|
5 |
36 |
34 |
30 |
37 |
34 |
32 |
- |
37 |
35 |
33 |
- |
|
6 |
36 |
34 |
30 |
37 |
34 |
32 |
- |
37 |
35 |
33 |
- |
|
7 |
38 |
35 |
31 |
38 |
36 |
34 |
- |
- |
- |
- |
- |
40 |
|
8 |
38 |
35 |
31 |
38 |
36 |
34 |
- |
- |
- |
- |
- |
|
9 |
40 |
36 |
32 |
40 |
37 |
35 |
- |
- |
- |
- |
- |
|
10 |
42 |
38 |
33 |
42 |
39 |
35 |
30 |
44 |
40 |
37 |
32 |
|
12 |
43 |
39 |
34 |
43 |
39 |
35 |
30 |
45 |
40 |
37 |
32 |
|
15 |
44 |
40 |
35 |
44 |
41 |
36 |
31 |
46 |
42 |
38 |
33 |
|
17 |
44 |
40 |
35 |
45 |
41 |
36 |
31 |
47 |
42 |
38 |
33 |
|
20 |
45 |
41 |
36 |
46 |
42 |
38 |
33 |
48 |
43 |
39 |
34 |
|
25 |
46 |
42 |
38 |
47 |
43 |
40 |
36 |
49 |
44 |
41 |
37 |
80 |
|
30 |
47 |
43 |
39 |
48 |
44 |
41 |
37 |
50 |
45 |
42 |
38 | | |