|
The bearing
tolerance is classified as Class2,4,5,6and 0 accordance with
the Chinese national standard GB/T307-94.The table as below
makes a comparison between this classification of tolerance
with Chinese national standard GB307-84 as well as ISO standard.
INNER
RING
|
d
mm
|
dmp
|
|
Vdmp
|
Kia
|
Bs
|
VBs
|
|
|
|
|
Max
|
|
10
10
13
|
8
8
10
|
6
6
8
|
|
|
|
|
|
Max
|
Min
|
|
0
0
0
|
-120
-120
-120
|
|
|
|
|
OUTER
RING
|
D
mm
|
Dmp
|
VDp
|
VDmp
|
Kea
|
Cs
|
VCs
|
|
Open
|
Close
|
|
9
|
0
1
|
2
3
4
|
2
3
4
|
|
≥
|
≤
|
Max
|
Min
|
Max
|
Max
|
Max
|
Max
|
Min
|
Max
|
|
6
18
30
|
18
30
50
|
0
0
0
|
-8
-9
-11
|
10
12
14
|
8
9
11
|
6
7
8
|
10
12
16
|
6
7
8
|
15
15
20
|
the same value with Bs &
VBs
|
|
|
Standard
|
Classification of tolerance
|
|
GB307-84
|
B
|
C
|
D
|
E
|
G
|
|
GBT307-94
|
2
|
4
|
5
|
6
|
0
|
|
ISO
|
2
|
4
|
5
|
6
|
0
|
|
ASA
|
ABEC-9
|
ABEC-7
|
ABEC-5
|
ABEC-3
|
ABEC-1
|
|
SKF
|
P2
|
P4
|
P5
|
P6
|
P0
|
|
|
