|
High carbon chrome bearing steel(Gcr15) is the standard material for bearing ring & rolling elements, also carbon steel & stainless steel will be used upon request. The chemical composition of Gcr15 is listed in the below table.
CHEMICAL COMPOSITION OF BEARING STEEL
|
Steel No. |
Symbol |
Chemical Composition(Wt%) |
|
Gcr15 |
AISI 52100 |
C
0.95-1.05 |
Cr
1.30-1.65 |
Si
0.15-0.35 |
Mn
0.2-0.4 |
P
<0.027 |
S
<0.02 |
THE CONTRAST OF GCR15 OF EACH COUNTRY
|
China |
ISO |
USA |
Japan |
Germany |
France |
Sweden |
|
GB
Gcr15 |
683/xv11 |
AISI
52100 |
JIS
SUJ2 |
DIN
100Cr6 |
NF
100C6 |
SKF3 |
CAGES
In general, ZSL cages are pressed steel ribbon cages & pressed steel snap cages. For extra-high speed application, synthetic-resin, stainless steel, nylons(Phenolic resins) will be used upon request.
SHIELDS & SEALS
SPCC is the main material for ZSLZ shields, and carbon steel & stainless steel can be used upon request. Buna Nitrile is standard sealing material we use, while fluorocarbon, silicone, and Teflon seals are commonly specified for high temperatures.
LUBRICATION
Different types of greases can be supplied for shielded & sealed bearings and oil for open bearings. |
