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單(dan)向(xiang)(xiang)軸(zhou)承(cheng)(cheng)是在一(yi)(yi)個(ge)(ge)方(fang)向(xiang)(xiang)上(shang)可以自(zi)由轉動，而在另(ling)一(yi)(yi)個(ge)(ge)方(fang)向(xiang)(xiang)上(shang)鎖死的(de)一(yi)(yi)種軸(zhou)承(cheng)(cheng)。單(dan)向(xiang)(xiang)軸(zhou)承(cheng)(cheng)也叫超越離合器(qi)，只是根據行業(ye)不(bu)(bu)同(tong)(tong)，作用(yong)不(bu)(bu)同(tong)(tong)來命名(ming)的(de)。


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