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Ningbo KaiCheng Bearings Manufacturing Co., Ltd.
homeBearing collar and roller materialBearing collar and roller material

Bearing collar and roller material

Bearing collar and roller material
Nov 25, 2008 10:37:27 AM
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



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