RINGS & BALLS vacuum degassed, high carbon chromium bearing steel GCr15 is the standard material for precision bearing rings and balls. The material has uniform specification as AISL 52100(America)DIN100 Cr6(German),JISSUJ2(Japan)
Steel No.
Chemical composition %
GCr 15
C
Si
Min
P
S
Cr
Mo
Cu
Ni
0.95-1.05
0.15-0.35
0.25-0.45
s0.025
s0.025
1.40-1.65
-
s0.25
s0.30
RETAINERS-HCH& CTK standard bearing retainers are made from cold rolled carbon steel however, in cases of corrosive environment, misalignment,or high speed operation, stainless steel, or phenolic resins will be used upon request.
Steel No.
Chemical composition %
JISG 3141
SPCC
C
Si
Min
P
S
Ni
Cr
<0.12
-
<0.5
<0.04
<0.045
-
-
SEALS & SHIELDS-HCH& CTK shields also employ carbon steel as standard, and the option of AISI-300 stainless steel is available when needed. HCH&CTK users a variety of sealing materials to meet the requirements of high temperature operation and compatibility with greases. Buna Nitrile is the standard material used, while fluorocarbon, silicone, and teflon seals are commonly specified for high temperatures.
LUBRICANTS-HCH&CTK standard greases are supplied with shielded or sealed bearings as standard Different types oil lubricants can be supplied upon request and are standard for open bearings
Roller Bearings
