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軸承公差
2014/8/21 22:52:52

YJ深溝球軸承的制造精度按中華人民共和國國家標準GB/T307.1-94分為四個公差等級。這些公差等級和ISO等標準對照，如下表所示：

標準	公差等級
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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