Official Answer
Answer
Zoben karkace ya dogara da kaifi, kusurwar murabba'i akan ɓangaren da aka riƙe don rarraba kaya daidai. Idan shaft ko abin da aka riƙe yana da babban radius $R$, ana amfani da nauyin $P$ a wani wuri da ke gaba daga tsagi. Wannan yana haifar da babban hannun lever da radial bangaren ƙarfi $P_{rad} = P \cdot \ sin(\phi)$ wanda ke aiki don faɗaɗa zobe. Wannan aikin 'camming' yana tilasta zobe daga cikin tsagi. Don hana wannan, ɓangaren da aka riƙe dole ne ya kasance yana da kusurwa mai kaifi ko kuma a sanya shim tsakanin ɓangaren radiyo da zoben riƙewa don samar da fuska mai nauyin murabba'i.
