Technical Parameters - Vibration and Noise

According to related standard, the vibration noise (dB) of U&J bearings for their vibration under acceleration are divided
into four groups: Z1, Z2, Z3, and Z4. Also they can be divided into four groups in according to vibration speed (um/s): V1, V2, V3,
and V4. Now U&J bearing can meet to under acceleration group Z1, Z2, Z3, Z4; and vibration speed group V1, V2, V3.
Single bearing vibration noise under acceleration specification is shown on table No.10.
Single bearing vibration speed specification is shown on table No.11

Single Bearing acceleration Grade Can Not Be Over The Following Value
Table 10

mm	(0)						(2)						(3)
mm	Diameter Series						Diameter Series						Diameter Series
Bore diameter	Z1	Z2	Z3	Z4	ZP3	ZP4	Z1	Z2	Z3	Z4	ZP3	ZP4	Z1	Z2	Z3	Z4	ZP3	ZP4
5	36	34	30	26	46	42	37	34	32	28	48	44	37	35	33	29	49	45
6	36	34	30	26	46	42	37	34	32	28	48	44	37	35	33	29	49	45
7	38	35	31	27	47	43	38	36	34	29	50	45	39	37	33	30	51	46
8	38	35	31	27	47	43	38	36	34	29	50	45	39	37	33	30	51	46
9	40	36	32	28	48	44	40	37	35	30	51	46	41	39	37	32	53	48
10	42	38	33	28	49	44	42	39	35	30	51	46	44	40	37	32	53	48
12	43	39	34	29	50	45	43	39	35	30	51	46	45	40	37	32	53	48
15	44	40	35	30	51	46	44	41	36	31	52	47	46	42	38	33	54	49
17	44	40	35	30	51	46	44	41	36	31	52	47	47	42	38	33	54	49
20	45	41	36	31	52	47	46	42	38	33	54	49	50	43	39	34	55	50
22	45	41	36	31	52	47	46	42	38	33	54	49	50	43	39	34	55	50
25	46	42	38	34	54	50	47	43	40	36	56	52	49	44	41	37	57	53
28	47	43	39	35	55	51	48	44	41	37	57	53	50	45	42	38	58	54
30	47	43	39	35	55	51	48	44	41	37	57	53	50	45	42	38	58	54
32	48	44	40	36	56	52	49	45	42	38	58	54	51	46	43	39	59	55
35	49	45	41	37	57	53	50	46	43	39	59	55	52	47	44	40	60	56
40	51	46	42	38	58	54	52	47	44	40	60	56	54	49	45	41	61	57
45	53	48	45	42	61	58	54	49	46	43	62	59	56	51	47	44	63	60
50	54	50	47	44	63	60	55	51	48	45	64	61	57	53	49	46	65	62
55	56	52	49	46	65	62	57	53	50	47	66	63	59	54	51	48	67	64
60	58	54	51	48	67	64	59	54	51	48	67	64	61	56	53	50	69	66

Single Bearing Vibration Speed Grade Allowed The Limit Value
Table 11

轴承内径 mm	V1			V2			V3			V4
轴承内径 mm	低频带	中频带	高频带	低频带	中频带	高频带	低频带	中频带	高频带	低频带	中频带	高频带
Bore diameter	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency
3	60	35	32	48	26	22	31	16	15	28	10	10
4	60	35	32	48	26	22	031	16	15	28	10	10
5	74	48	40	58	36	30	35	21	18	32	11	11
6	74	48	40	58	36	30	35	21	18	32	11	11
7	92	66	54	72	48	40	44	28	24	38	12	12
8	92	66	54	72	48	40	44	28	24	38	12	12
9	92	66	54	72	48	40	44	28	24	38	12	12
10	120	80	70	90	60	50	55	35	30	45	14	15
12	120	80	70	90	60	50	55	35	30	45	14	15
16	150	100	85	110	78	60	65	46	35	52	18	18
17	150	100	85	110	78	60	65	46	35	52	25	25
20	180	125	100	130	100	75	80	60	45	60	25	25
22	180	125	100	130	100	75	80	60	45	60	30	32
25	180	125	100	130	100	75	80	60	45	60	30	32
28	180	125	100	130	100	75	80	60	45	60	35	40
30	200	150	130	150	120	100	90	75	60	70	35	40
32	200	150	130	150	120	100	90	75	60	70	35	40
35	200	150	130	150	120	100	90	75	60	70	42	45
40	240	180	160	180	150	130	110	90	80	82	50	50
45	240	180	160	180	150	130	110	90	80	82	60	60
50	280	200	200	210	160	160	125	100	100	95	70	70
55	280	220	200	210	180	180	125	110	110	95	70	70
60	320	220	240	240	180	200	145	110	130	100	80	80

Deep Groove Ball Bearing, Miniature Ball Bearing, Electric motor bearing