Bayyana lissafin 'wasa axial' a cikin taro ta amfani da zoben riƙe da karkace da yadda yake da alaƙa da juriyar 'tari'.

Wasan axial shine jimlar yuwuwar motsi na abubuwan da aka riƙe tare da shaft ko axis na gidaje. Ana lissafta shi a matsayin $Play = G_w - (T_{ring} + \ sum T_{comp})$, inda $G_w$ shine fadin tsagi, $T_{ring}$ shine kaurin zobe (ciki har da juriyar tasa/tashin hankali), kuma $\ sum T_{comp}$ shine jimlar juriyar duk abubuwan da aka riƙe. A cikin madaidaicin majalissar gani ko sararin samaniya, dole ne a rage girman wasan axial don hana lalacewa mai haifar da girgiza. Ana gudanar da wannan sau da yawa ta hanyar amfani da magudanar ruwa tare da zoben karkace don samar da preload na axial akai-akai, ko kuma ta zaɓin zoben karkace na 'daidaitacce' wanda ke da kauri iri ɗaya a faɗin kewayensa, yana rage tasirin 'snaking' a cikin tsagi.