| Bearing collar and roller material |
| AHEAD
adopts 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 |
Cr |
Si |
Mn |
P |
S |
|
| 0.95-1.05 |
1.40-1.65 |
0.15-0.35 |
0.25-0.45 |
＋0.027 |
＋0.02 |
|
| Element(wt%) |
Ni |
Cu |
Mo |
Sn |
As |
Ti |
|
| <0.23 |
＋0.25 |
＋0.1 |
<0.03 |
<0.04 |
<0.005 |
|
| Element(wt%) |
Sb |
Pb |
O<0.001 |
Al |
Ca |
- |
|
| <0.002 |
<0.002 |
<0.05 |
<0.01 |
|
| |
| Corresponding designation equivalent GCr15 |
| CHINA |
ISO |
USA |
GERMANY |
JAPAN |
SWEDEN |
|
| GCr15 |
683/XVÅ |
52100 |
100Cr6 |
SUJ2 |
SKF3 |
|
| (ASTM) |
(DIN) |
(JIS) |
|
| |
| 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 |
|
|
