Answer
A 'Pilot Diamita' shine diamita na shaft wanda ke tsakiyar tushen igiyar ruwa. Haƙuri akan wannan matukin jirgi yana da mahimmanci don hana kuskuren axial. Don maɓuɓɓugar ruwan raƙuman ruwa tare da ID na ƙima, matukin jirgi ya zama $D_{matukin jirgi} = ID_{min} - 0.010$ inci. Ya kamata a riƙe haƙuri akan matukin zuwa $\pm 0.002$ inci. Idan matukin ya yi girma sosai, bazarar za ta ɗaure yayin da yake faɗaɗa / kwangila; idan ya yi ƙanƙanta, bazarar na iya zama a hankali, yana haifar da 'loading gefen.' Loading Edge yana ƙara damuwa na gida ta hanyar $K_e \ kimanin 1.5$ zuwa $ 2.0$, wanda zai iya haifar da gazawar gajiya tsakanin $10^4$ hawan keke. A cikin watsawar manyan motoci masu rawar jiki, madaidaicin matukin jirgi yana tabbatar da cewa bazarar ta kasance mai ta'azzara, tana riƙe da daidaitaccen ɗaukar nauyi akan tseren ɗaukar hoto da yake tallafawa.
