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Bearing Clearance |
8.1、Ring
and ball package material
Bearing ring and ball package usually use high carbon chromium
bearing steel GCr15 (Table 8.1)
The chemical composition of GCr15 has uniform specifications all
over the world.
e.g. American AISL52100, German DIN100Cr6, Japanese SUJ2
Table 8.1 High carbon chromium bearing steel
Table 8.1 High
carbon chromium bearing steel |
Specification |
Trademark |
Chemical composition
(%) |
C |
Si |
Mn |
S |
P |
Cr |
Mo |
GB/T 18254 |
Gcr15 |
0.95-1.05 |
0.15-0.35 |
0.25-0.45 |
Below 0.025 |
Below 0.025 |
1.40-1.65 |
|
JIS G 4805 |
SUJ2 |
0.95-1.10 |
0.15-0.35 |
Below 0.50 |
Below 0.025 |
Below 0.025 |
1.30-1.60 |
Below 0.08 |
ASTM A 295 |
52100 |
0.98-1.10 |
0.15-0.35 |
0.25-0.45 |
Below 0.025 |
Below 0.025 |
1.30-1.60 |
Below 0.10 |
It also uses stainless steel with
fine anti-corrosive performance according to special use.
Please refer to Table 8.2 for the
chemical composition.
TABLE 8.2 THE
CHEMICAL COMPOSITION OF ROLLER BEARING
PURPOSE STAINLESS STEEL |
Specification |
Trademark |
Chemical composition
(%) |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
GB 3086 |
9Cr18 |
0.90-1.00 |
Below 0.80 |
Below 0.80 |
Below 0.35 |
Below 0.30 |
17.00-19.00 |
|
JIS G 4303 |
SUW440C |
0.95-1.20 |
Below 1.00 |
Below 1.00 |
Below 0.40 |
Below 0.30 |
16.00-18.00 |
Below 0.75 |
8.3、Cage
material
Puched cage material,It uses low
carbon steel
TABLE 8.3 CAGE
MATERIAL PURPOSE STEEL PLATE
AND CHEMICAL COMPOSITION OF CARBON STEEL
|
| Difference |
Specification
|
Trademark |
Chemical composition |
C |
Si |
Mn |
P |
S |
Punched cage purpose steel
plate |
JIS G 3141 |
SPCC |
Below 0.12 |
|
Below 0.50 |
Below 0.04 |
Below 0.45 |
|
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