Bearing
ring and ball are adopted with GCr15 to
be made.
The Chemical of Bearing Steel No.of each
country.See Table 1.
The preserving Shelf generally adoption
H62 Brass Sheet of 0.8F cold rolling steel
strap.punching to be made,also having
plastics,phasics,phenol Aldehyde and presserving
shelf.
Country
China
ISO
U.S.A
Germany
Japan
Sweden
Bearing
Steel No.
GCr15
683/XVII1
(AISI)52100
(Din)100Cr6
(Jis)SUJ2
SKF3
According
to the International Standard,the
Accuracy of Bearing can be divided
into five grades:normal Grade 0.High
Grade 6.Accurate grade 5.Over Accuracy
Grade 4.and over the 4th grade2.
The grade of tolerance is in accordance
with the standard of GB/T307.1-94.
The contrast of Bearing Accuracy
See Table 2.
Country
Standard
Accuracy
Grade
China
GB307.1
0
6
5
4
2
International
Standard Organization
ISO
0
P6
5
4
2
Sweden
SKF
P0
P6
P5
P4
P2
Germany
DIN
P0
P6
P5
P4
P2
Japan
JIS
P0
P6
P5
P4
P2
U.S.A
ANSI
ABEC1
ABEC3
ABEC5
ABEC7
ABEC9
Radial
Clearances
The radial clearances of
our bearings can be classified
into C2£¬C3£¬C4&C5
according to customer's
request.