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BEARING TOLERANCE
2014-8-21 23:21:27
The accuracy of YJ deep groove ball bearings is divided into four grades of tolerances with National Standard of P.R. of China : GB/T307. 1-94 which comparisom whih the ISO-standard,ets is im the following table.
standard Tolerance class
YJ (GB/T307.1-94) P0 P6 P5 P4
ISO492 Normall class class6 class5 class4
AFBMA STD.20-1987 ABEC-1 ABEC-3 ABEC-5 ABEC-7
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