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Tel:+86-510-8271 1966 Fax: +86 - 510 - 8273 6388 E-mail: sales@wd-bearing.com

Material

The rings, balls, needles and rollers of WD bearings can be made of refining bearing steel AISI52100, stainless steel AISI440C, AISI420, etc.

Cages are normally punch-pressed from brass strips H62 or steel strips 08, SPCC BQB402, as well as stainless steel strips AISI304, AISI302, fiber reinforced phenolic resin, plastics or copper stock, etc;

Shields can be made of Japanese SPCC JISG3141 or stainless steel AISI304 or AISI302.

Seals: synthetic rubber hot pressed with phosphatizing steel (AISI304 or AISI302 may used for stainless steel bearings) skeleton.

The chemical composition of bearing steel and stainless steel are listed as follows:

Steel No.
C%
Si%
Mn%
S%
P%
Cr%
AISI52100
0.95-1.05
0.15-0.3
0.25-0.45
<0.025
<0.025
1.3-1.6
AISI440C
0.90-1.05
<0.8
<0.8
<0.04
<0.03
16-19

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