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Bearing 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%)
C0.95-1.05
Cr1.40-1.65
Si0.15-0.35
Mn0.25-0.45
P¡Ü0.027
S¡Ü0.02
Element(wt%)
Ni<0.23
Cu¡Ü0.25
Mo¡Ü0.1
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/XV¢ò
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

Bearing Accuracy Sheet


Country
Standard
Accuracy Grade
China
GB307.1
0
6
5
4
2
International
Standard Organization
ISO
0
6
5
4
2
Sweden
SKF
P0
P6
P5
P4
P2
Germany
DIN
P0
P6
P5
P4
P2
Japan
JIS
P0
P6
P5
P4
P2
U.S.A
ANSI
ABEC1
ABEC3
ABEC5
ABEC7
ABEC9

 

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