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單(dan)向(xiang)(xiang)軸(zhou)承是在(zai)(zai)一(yi)個(ge)方(fang)向(xiang)(xiang)上可以自由(you)轉動(dong)，而在(zai)(zai)另(ling)一(yi)個(ge)方(fang)向(xiang)(xiang)上鎖死的(de)一(yi)種軸(zhou)承。單(dan)向(xiang)(xiang)軸(zhou)承也叫超(chao)越離合器，只是根據行業(ye)不同，作用不同來命名的(de)。


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