Cov cab cab yog ib qho tseem ceeb ntawm cov cab cab iav, uas yog ib hom iav iav uas muaj cov cab cab (tseem hu ua lub log cab) thiab cov cab cab. Cov cab cab yog lub cylindrical pas nrig raws li tus cab cab ntsia hlau. Nws feem ntau muaj cov xov helical (cov cab cab) txiav rau hauv nws qhov chaw.
Cov cab cab feem ntau yog ua los ntawm cov khoom siv xws li hlau, stainless hlau, lossis tooj liab, nyob ntawm daim ntawv thov kev xav tau rau lub zog, ruaj khov, thiab hnav tsis kam. Lawv tau raug machined precisely los xyuas kom meej kev khiav hauj lwm du thiab muaj zog kis tau tus mob nyob rau hauv lub gearbox.