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| 材料和精度 |
FMOUS Bearing ring and steel Ball rar adopted with GCR 15 to be made.
The Chemical Composition See Table1.
The contrast of Bearing Steel No. of each country See Table2.
The preserving shelf generally adopting H62 Brass Sheet or 0.8F cold rolling steel strap.punching to be made,
alsohaving plastics,plastics, phenol ALddehyde and preserving shelf. |
| Table 1 |
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Chemical Composition(%)
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|
No. |
C |
Mn |
Si |
Cr |
S |
P |
Ni |
Cu |
HB |
< |
|
GCr15 |
095-1.05 |
0.20-0.4 |
01.5-0.35 |
1.30-1.56 |
0.020 |
0.027 |
0.3 |
0.25 |
170-207 |
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| Table 2 |
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Country |
China |
ISO |
U.S.A |
Germany |
Janpan |
Sweden |
|
GCr15 |
Gcr15 |
683-xvll1 |
(AISI)52100 |
(Din)100Cr6 |
(Jis)Suj2 |
SKF3 |
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According to the international standard ,the Accuracy of FMOUS Bearing can be divide into five greades :normal Grad o. high Grade 6. Accurate grade 5.Over. Accuracy Greade4.and overthe 4the grade2.
The Contrast of Bearing Accuracy See Table3
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| Talbe 3 |
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Country |
Standard |
Accuracy Grade |
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China |
GB307.1 |
0 |
6 |
5 |
4 |
2 |
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International
Standard
Organization |
ISO |
0 |
6 |
5 |
4 |
2 |
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Sweden |
SKF |
P0 |
P6 |
P5 |
P4 |
P2 |
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Germany |
DIN |
P0 |
P6 |
P5 |
P4 |
P2 |
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Japan |
JIS |
P0 |
P6 |
P5 |
P4 |
P2 |
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U.S.A |
ANSI |
ABEC-1 |
ABEC-3 |
ABEC-5 |
ABEC-7 |
ABEC-9 |
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