Vibrationen und Lärm-Zhejiang jinxiang MIT Co., Ltd.

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The vibration and noise of bearings are measured by the SO9-Ⅱ instrument and classified into three classes, namely Z1, Z2, Z3. Below are the data sheets for your reference.

Maximum vibration acceleration of single bearing （dB）

d	Diameter Series（0）				Diameter Series（2）				Diameter Series（3）
mm	Z	Z₁	Z₂	Z₃	Z	Z₁	Z₂	Z₃	Z	Z₁	Z₂	Z₃
5	37	36	34	30	38	37	34	32	39	37	35	33
6	37	36	34	30	38	38	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	46	44	40	37
12	44	43	39	34	45	43	39	35	47	45	40	37
15	45	44	40	35	46	44	41	36	48	46	42	38
17	46	44	40	35	47	45	41	36	49	47	42	38
20	47	45	41	36	48	46	42	38	50	48	43	39
22	47	45	41	36	48	46	42	38	50	48	43	39
25	48	46	42	38	49	47	43	40	51	49	44	41
30	49	47	43	39	50	48	44	41	52	50	45	42
35	51	49	45	41	52	50	46	43	54	52	47	44
40	53	51	46	42	54	52	47	44	56	54	49	45

Tolerance data for vibration speed of single bearing （um/s）

d	V₁			V₂			V₃
mm	Low Brand	Medium Brand	High Brand	Low Brand	Medium Brand	High Brand	Low Brand	Medium Brand	High Brand
5	74	48	40	58	36	30	35	21	18
6	74	48	40	58	36	30	35	21	18
7	92	66	54	72	48	40	44	28	24
8	92	66	54	72	48	40	44	28	24
9	92	66	54	72	48	40	44	28	24
10	120	80	70	90	60	50	55	35	30
12	120	80	70	90	60	50	55	35	30
15	150	100	85	110	78	60	65	46	35
17	150	100	85	110	78	60	65	46	35
20	180	125	100	130	100	75	80	60	45
22	180	125	100	130	100	75	80	60	45
25	180	125	100	130	100	75	80	60	45
30	200	150	130	150	120	100	90	75	60
35	200	150	130	150	120	100	90	75	60
40	240	180	160	180	150	130	110	90	80