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單(dan)向軸(zhou)承是(shi)在(zai)一(yi)個方(fang)向上(shang)可以自由轉動(dong)，而在(zai)另一(yi)個方(fang)向上(shang)鎖死的(de)一(yi)種軸(zhou)承。單(dan)向軸(zhou)承也叫(jiao)超越離合器，只是(shi)根據行業不同，作用不同來命名的(de)。


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