bearing collar,bearing vibration noise specification,bearing clearance manufacturer and bearing collars,bearing vibration noise specifications, bearing clearances supplier--China NingBo KaiCheng Bearings Manufacturing Co., Ltd.

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Deep Groove Ball Bearings >> bearing collar and roller material, bearing collar

[bearing collar, bearing vibration noise specification, bearing clearance]

As a professional bearing collars, bearing vibration noise specifications, bearing clearances manufacturer, exporter, supplier and factory in China.--NingBo KaiCheng Bearings Manufacturing Co., Ltd. founded in 1988, It's specialized in manufacturing deep groove ball bearings, tapered roller bearings, automobile bearings, bearing collar, bearing vibration noise specification, bearing clearance 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.

Bearing collar and roller material
The best material for rolling bearing is high carbon chromium bearing steel, which features desired hardness, strong rolling fatigue resistance, wearing resistance and stable dimension. Its chemical composition is:

Chemical composition of bearing steel GCr1

Element(wt%)

C
0.95-1.05

Cr
1.40-1.65

Si
0.15-0.35

Mn
0.25-0.45

P
=0.027

S
=0.02

Element(wt%)

Ni
<0.23

Cu
=0.25

Mo
=0.1

Sn
<0.03

As
<0.04

Ti
<0.005

Element(wt%)

Sb
<0.002

Pb
<0.002

O<0.001

Al
<0.05

Ca
<0.01

-

Corresponding designation equivalent GCr15

CHINA

ISO

USA

GERMANY

JAPAN

SWEDEN

GCr15

683/XVⅡ

52100
(ASTM)

100Cr6
(DIN)

SUJ2
(JIS)

SKF3

Staintess steel

Steel No.

Chemical composition%

C

Si

Mn

P

S

Cr

Mo

AISI-440C

0.95-1.2

<1.0

<1.0

<0.04

<0.03

16-18

<0.75

As well as we have powerful strength for new products, bearing collars, bearing vibration noise specifications, bearing clearances and special bearings development. Form last year, We are 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 collars, bearing vibration noise specifications, bearing clearances

bearing, bearings

Contact us

Ningbo KaiCheng Bearings Manufactory Co.,Ltd.
Add:Room 624, Jinhui Building, No.1318, Qianying Road, Cixi, Zhejiang.
Tel:0086-574-63006565
Fax:0086-574-63105608
E-mail:bearingcie@bearingcie.com
Website: http://www.bearingcie.com
Contact Person : Mr. FangJun(Sales Manager)