|
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
¡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
|
|