Deep Groove Ball Bearing Accelerating Vibration(dB).See Table 4
Deep Groove Ball Bearing Accelerating Vibration(dB).See Table 5
Table4 Single Bearing Vibration speed Grade can not be over the following values
Bore Diameter mm  | Diamerter Series(0)  | Diamerter Series(2)  | Diamerter Series(3)  | ||||||||
Z1  | Z2  | Z3  | Z1  | Z2  | Z3  | Z4  | Z1  | Z2  | Z3  | Z4  | |
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  | -  | -  | -  | -  | -  | 
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  | 
30  | 47  | 43  | 39  | 48  | 44  | 41  | 37  | 50  | 45  | 42  | 38  | 
35  | 49  | 45  | 41  | 50  | 46  | 43  | 39  | 52  | 47  | 44  | 40  | 
Table5 Single Bearing Vibration speed Grade Allowed The Limit value um/s
Bore Diameter d mm  | V1  | V2  | V3  | ||||||
Low Frequency  | Mwdium Frequency  | High Frequency  | Low Frequency  | Mwdium Frequency  | High Frequency  | Low Frequency  | Mwdium Frequency  | High Frequency  | |
5  | 90  | 60  | 50  | 58  | 36  | 30  | 35  | 21  | 18  | 
6  | 920  | 60  | 50  | 58  | 36  | 30  | 35  | 21  | 18  | 
7  | 110  | 80  | 65  | 72  | 48  | 40  | 44  | 28  | 24  | 
8  | 110  | 80  | 65  | 72  | 48  | 40  | 44  | 28  | 24  | 
9  | 110  | 80  | 65  | 72  | 48  | 40  | 44  | 28  | 24  | 
10  | 140  | 100  | 85  | 90  | 60  | 50  | 55  | 35  | 30  | 
12  | 140  | 100  | 85  | 90  | 60  | 50  | 55  | 35  | 30  | 
15  | 180  | 130  | 100  | 110  | 78  | 60  | 65  | 46  | 35  | 
17  | 180  | 130  | 100  | 110  | 78  | 60  | 65  | 46  | 35  | 
20  | 220  | 160  | 125  | 130  | 100  | 75  | 80  | 60  | 45  | 
22  | 220  | 160  | 125  | 130  | 100  | 75  | 80  | 60  | 45  | 
25  | 220  | 160  | 125  | 130  | 100  | 75  | 80  | 60  | 45  | 
30  | 250  | 200  | 160  | 150  | 120  | 100  | 90  | 75  | 60  | 
35  | 250  | 200  | 160  | 150  | 120  | 100  | 90  | 75  | 60  |