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The vibration and noise of bearings are classified as four classes measured by BVT-1 and classified as V1, V2 ,V3 and V4.

Data for vibration of single deep groove ball bearing

Tolerance in μm/s.

d	V			V1			V2			V3			V4
mm	Low Band	Medium Band	High Band	Low Band	Medium Band	High Band	Low Band	Medium Band	High Band	Low Band	Medium Band	High Band	Low Band	Medium Band	High Band
3,4	80	44	44	60	35	32	48	26	22	31	16	15	28	10	10
5,6	110	72	60	74	48	40	58	36	30	35	21	18	32	11	11
7,8,9	130	96	80	92	66	54	72	48	40	44	28	24	38	12	12

10,12	160	120	100	120	80	70	90	60	50	55	35	30	45	14	15
15	210	150	120	150	100	85	110	78	60	65	46	35	52	18	18
17	210	150	120	150	100	85	110	78	60	65	46	35	52	25	25

20	260	190	150	180	125	100	130	100	75	80	60	45	60	25	25
22,25	260	190	150	180	125	100	130	100	75	80	60	45	60	30	32
28	260	190	150	180	125	100	130	100	75	80	60	45	60	35	40

30,32	300	240	190	200	150	130	150	120	100	90	75	60	70	35	40
35	300	240	190	200	150	130	150	120	100	90	75	60	70	42	45
40	360	300	260	240	180	160	180	150	130	110	90	80	82	50	50

45	360	300	260	240	180	160	180	150	130	110	90	80	82	60	60
50	420	320	320	280	200	200	210	160	160	125	100	100	95	70	70
55	420	360	360	280	220	200	210	180	180	120	110	110	95	70	70

60	480	360	440	320	220	240	240	180	200	145	110	130	100	80	80

Tolerance in μm/s.

d	V			V1			V2			V3			V4
mm	Low Band	Medium Band	High Band	Low Band	Medium Band	High Band	Low Band	Medium Band	High Band	Low Band	Medium Band	High Band	Low Band	Medium Band	High Band
65	300	260	420	180	160	240	130	100	150	105	80	105	50	50	75
70	360	310	460	200	180	280	150	120	200	110	90	135	58	58	88
75	360	310	460	200	180	280	150	120	200	110	90	135	58	58	88

80	420	360	540	240	210	320	180	120	240	130	110	160	65	65	100
85	420	360	540	240	210	320	180	120	240	130	110	160	65	65	100
90	480	420	600	290	250	370	210	180	270	145	125	180	75	75	115

95	480	420	600	290	250	370	210	180	270	145	125	180	75	75	115
100	560	490	670	340	300	420	250	215	310	170	145	200	88	88	135
105	560	490	670	340	300	420	250	215	310	170	145	200	88	88	135

110	640	570	750	400	350	480	290	260	350	190	175	225	100	100	160
115	640	570	750	400	350	480	290	260	350	190	175	225	100	100	160

dB noise testing
The noise of bearings by dB is classified as four classes as Z1, Z2, Z3 and Z4. It is measured by the instrument of S0910-1.
Maximum vibration acceleration of single bearing

Tolerance in dB

d	Diameter Series (0)					Diameter Series (2)					Diameter Series (3)
mm	Z	Z1	Z2	Z3	Z4	Z	Z1	Z2	Z3	Z4	Z	Z1	Z2	Z3	Z4
3	35	34	32	28	24	36	35	32	30	26	37	36	33	31	27
4	35	34	32	28	24	36	35	32	30	26	37	36	33	31	27
5	37	36	34	30	26	38	37	34	32	28	39	37	35	33	29

6	37	36	34	30	26	38	37	34	32	28	39	37	35	33	29
7	39	38	35	31	27	40	38	36	34	29	41	39	37	35	30
8	39	38	35	31	27	40	38	36	34	29	41	39	37	35	30

9	41	40	36	32	28	42	40	37	35	30	43	41	39	37	32
10	43	42	38	33	28	44	42	39	35	30	46	44	40	37	32
12	44	43	39	34	29	45	43	39	35	30	47	45	40	37	32

15	45	44	40	35	30	46	44	41	36	31	48	46	42	38	33
17	46	44	40	35	30	47	45	41	36	31	49	47	42	38	33
20	47	45	41	36	31	48	46	42	38	33	50	48	43	39	34

22	47	45	41	36	31	48	46	42	38	33	50	48	43	39	34
25	48	46	42	38	34	49	47	43	40	36	51	49	44	41	37
28	49	47	43	39	35	50	48	44	41	37	52	50	45	42	38

30	49	47	43	39	35	50	48	44	41	37	52	50	45	42	38
32	50	48	44	40	36	51	49	45	42	38	53	51	46	43	39
35	51	49	45	41	37	52	50	46	43	39	54	52	47	44	40

40	53	51	46	42	38	54	52	47	44	40	56	54	49	45	41
45	55	53	48	45	42	56	54	49	46	43	58	56	51	47	44
50	57	54	50	47	44	58	55	51	48	45	60	57	53	49	46

55	59	56	52	49	46	60	57	53	50	47	62	59	54	51	48
60	61	58	54	51	48	62	59	54	51	48	64	61	56	53	50

Maximum vibration acceleration of single bearing

Tolerance in μm/s.

d	Diameter Series (0)				Diameter Series (2)				Diameter Series (3)
mm	Z	Z1	Z2	Z3	Z	Z1	Z2	Z3	Z	Z1	Z2	Z3
65	49	48	46	41	50	49	47	42	51	50	48	43
70	50	49	47	42	51	50	48	43	52	51	49	44
75	51	50	48	43	52	51	49	44	53	52	50	45

80	52	51	49	44	53	52	50	45	54	53	51	46
85	53	52	50	45	54	53	51	46	56	55	52	47
90	54	53	52	47	56	55	53	48	58	57	54	49

95	56	55	54	49	58	57	55	50	60	59	56	51
100	58	57	56	51	60	59	57	52	62	51	58	53
105	60	59	58	53	62	61	59	54	64	63	60	55

110	62	61	60	55	64	63	61	56	66	65	62	57
120	64	63	62	57	66	65	63	58	68	67	64	59

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