Kayayyaki

Bearings na allurar da aka nada suna daidaita kansu kuma suna ba da ƙaramin mafita a aikace-aikace inda akwai ƙarancin sarari. Tsarin ciki, inda zoben waje mai lanƙwasa ya haɗu da zoben zama guda biyu masu lanƙwasa waɗanda aka lulluɓe a cikin hannun riga, yana ba bearings damar ɗaukar farkon rashin daidaituwa. Bearings na allurar da aka nada ba tare da zoben ciki suna samuwa a cikin nau'in RPNA. Bearings ba tare da zoben ciki ba sun dace sosai don shirye-shiryen ɗaukar kaya tare da tsayin sashe mai ƙarancin girma da kuma girman radial musamman, idan hanyar tsere ta shaft za ta iya taurare kuma ta niƙa. Idan ba a yi amfani da zoben ciki ba, za a iya tsara shaft ɗin zuwa mafi kauri kuma don haka tare da ƙaruwar tauri.