NingBo KaiCheng Bearings Manufacturing Co., Ltd. founded in 1988, It's specialized in manufacturing deep groove ball bearings, tapered roller bearings, automobile bearings, bearing vibration noise specification, bearing vibration noise specifications etc. The high speed and low noise bearings is our mainly produces of EMQ bearings. We are own our brand of "CIE", It is of advanced productive technique, consummate device and complete testing means. As well as we have powerful strength for new products, bearing vibration noise specification, bearing vibration noise specifications and special bearings development. Form last year, We ar sales about Seventy million US$ for export, About 90% produce in our factory is for export.

Bearing vibration noise specification
Table 1

Bore diameter (mm)	Deep groove ball bearing accelerating vibration(dB)
	Diameter seines(0)				Diameter seines(2)					Diameter seines(3)
	Z	Z1	Z2	Z3	Z	Z1	Z2	Z3	Z4	Z	Z1	Z2	Z3	Z4
3	35	34	32	28	36	35	32	30	-	37	36	33	31	-
4	35	34	32	28	36	35	32	30	-	37	36	33	31	-
5	37	36	34	30	38	37	34	32	-	39	37	35	33	-
6	37	36	34	30	38	37	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	30	46	44	40	37	32
12	44	43	39	34	45	43	39	35	30	47	45	40	37	32
15	45	44	40	35	46	44	41	36	31	48	46	42	38	33
17	46	44	40	35	47	45	41	36	31	49	47	42	38	33
20	47	45	41	36	48	46	42	38	33	50	48	43	39	34
22	47	45	41	36	48	46	42	38	33	50	48	43	39	34
25	48	46	42	38	49	47	43	40	36	51	49	44	41	37
28	49	47	43	39	50	48	44	41	37	52	50	45	42	38
30	49	47	43	39	50	48	44	41	37	52	50	45	42	38
32	50	48	44	40	51	49	45	43	38	53	51	46	43	39
35	51	49	45	41	52	50	46	42	39	54	52	47	44	40
40	53	51	46	42	54	52	47	43	40	56	54	49	45	41
45	55	53	48	45	56	54	49	44	43	58	56	51	47	44
50	57	54	50	47	58	55	51	46	45	60	57	53	49	46
55	59	56	52	49	60	57	53	50	47	62	59	54	51	48
60	61	58	54	51	62	59	54	51	48	64	61	56	53	50

According to related standard, the vibration noise (dB) of bearigs for their vibration under acceleration are divided into four groups:Z1,Z2,Z3and Z4. Also they can be divided into four groups in according to vibration speed (u m/s):V1,V2,V3 and V14.
Normlly, common bearings sre delivered with Z1 group vibration value if no special requirement from customers while the bearings for export will be delivered with vibration Z2 group specification. However, please note your special requirement on vibratoin inyour order.
Single bearing vibration noise under acceleration (dB) specification is shown on table.
Single bearing vibration speed (u m/s) specification is shown on table.
bearing vibration noise specification, bearing vibration noise specifications

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Category: Bearing vibration noise specifications
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