摩擦,在zai使shi用yong的de過guo程cheng中zhong，鏈lian環huan與yu鏈lian輪lun之zhi間jian會hui有you不bu斷duan摩mo擦ca而er造zao成cheng磨mo損sun甚shen至zhi變bian形xing，這zhe回hui導dao致zhi強qiang度du降jiang低di，最zui後hou隻zhi要yao受shou到dao衝chong擊ji就jiu會hui拉la斷duan，尤you其qi是shi材cai質zhi和he製zhi造zao質zhi量liang未wei達da到dao標biao準zhun要yao求qiu的de時shi候hou
，就jiu更geng加jia容rong易yi了le。