Radial ball bearing accuracy standard as follows:
Country
Standard
Accuracy Grade
International Standard Organization
ISO
0
6
5
4
2
Sweden
SKF
P0
P6
P5
P4
P2
Germany
DIN
Japan
JIS
U.S.A
ANSI
ABEC1
ABEC3
ABEC5
ABEC7
ABEC9
China
GB307.1
2023-10-31
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