Lub tshuab txo qis planetary siv rau hauv qhov kis ntawm qhov ceev qis thiab lub zog siab, tshwj xeeb tshaj yog nyob rau hauv sab tsav ntawm cov tshuab tsim kho thiab qhov tig ntawm lub crane ntauwd. Hom tshuab txo qis planetary no xav tau kev hloov pauv yooj yim thiab muaj peev xwm kis tau lub zog loj.
Cov iav planetary yog cov iav uas siv dav hauv kev txo qis planetary. Tam sim no, qhov yuav tsum tau ua rau cov iav planetary yog siab heev, qhov yuav tsum tau ua rau lub suab nrov iav yog siab, thiab cov iav yuav tsum huv thiab tsis muaj burrs. Thawj qhov yog cov khoom siv xav tau; qhov thib ob yog tias cov hniav profile ntawm cov iav ua tau raws li tus qauv DIN3962-8, thiab cov hniav profile yuav tsum tsis txhob concave, qhov thib peb, qhov yuam kev puag ncig thiab qhov yuam kev cylindricity ntawm cov iav tom qab sib tsoo yog siab, thiab qhov chaw sab hauv. Muaj cov kev xav tau roughness siab. Cov kev cai rau cov iav