Rakin tuƙi
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Kayayyakin gyaran tuƙi na sassan mota masu inganci
A matsayin wani ɓangare na tsarin sitiyarin rack-and-pinion, sitiyarin rack sanda ne da ke layi ɗaya da gatari na gaba wanda ke motsawa hagu ko dama lokacin da aka juya sitiyarin, yana mai da hankali kan ƙafafun gaba zuwa ga madaidaiciyar alkibla. Pinion ƙaramin gear ne a ƙarshen ginshiƙin sitiyarin abin hawa wanda ke haɗa rack ɗin.
