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單(dan)向(xiang)(xiang)軸(zhou)承是在一(yi)個方向(xiang)(xiang)上(shang)可以自由轉動，而(er)在另一(yi)個方向(xiang)(xiang)上(shang)鎖死的一(yi)種(zhong)軸(zhou)承。單(dan)向(xiang)(xiang)軸(zhou)承也叫(jiao)超越離合器，只是根據行業不同(tong)，作用不同(tong)來命(ming)名的。


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