Kukwenya chiitiko pane yekunze dhayamita yeanotakura anotenderedza zvinhu: circumferential dents munzvimbo yekusangana yezvinhu zvinotenderedza.Iko kune kazhinji kacho kunoenderana kutenderera kutenderera kune ma rollers, ona Figure 70 uye 71, uye "hairball" chiitiko chinowanzovapo kune mabhora, ona Mufananidzo 72. Kwete kuti irege kuvhiringika nemapendero emupendero (ona chikamu 3.3.2.6).Mucheto weiyo track yakaumbwa nemupendero inomhanya inotsvedzerera nekuda kwepurasitiki deformation, nepo kukwenya kune inopinza mipendero.Zvimedu zvakaomarara zvinowanzoiswa muhomwe dzekeji, zvichikonzera kurumwa, ona Mufananidzo 73. Chikonzero: Mafuta akasvibiswa;zvimedu zvakaomarara zvakaiswa muhomwe dzekeji zvinoita sezvimedu zvinoputika pavhiri rekugaya Mushonga: - inovimbisa yakachena yekuisa mamiriro - inovandudza chisimbiso - inosefa kunze kwemafuta.

Slip mamaki chiitiko: kutenderedza zvinhu zvinotsvedza, kunyanya mahombe uye anorema roller, senge INA akazara anozadza roller mabearings.Slip roughens mijaho kana kukunguruka zvinhu.Zvishandiso zvinowanzovaka nemavara ekudhonza.Kazhinji haina kugovaniswa pamusoro asi mumakwapa, ona Figure 74 ne75. Diki gomba rinowanzo kuwanikwa, ona chikamu 3.3.2.1 “Kuneta nekuda kwekushaikwa kwemafuta”.Zvinokonzera: - Kana mutoro wacho wakanyanya kudzikira uye mafuta acho asina kunaka, zvinhu zvinotenderedza zvinotsvedza pamijaho.Dzimwe nguva nekuda kwekuti nzvimbo yekutakura idiki, ma rollers anokurumidza kukurumidza muhomwe yekeji munzvimbo isina kurodha, uye obva akurumidza kukurumidza kana achipinda munzvimbo yekutakura.-Kukurumidza kuchinja mukumhanya.Matanho ekugadzirisa: - Shandisa mabearings ane low load capacity - Preload mabearings, semuenzaniso nezvitubu - Deredza kubereka kutamba - Iva nechokwadi chekuremerwa zvakakwana kunyangwe pasina - Kuvandudza mafuta.

Kutakura kukwenya chiitiko: Kune anopatsanurika cylindrical roller mabheji kana tapered roller mabheji, zvinhu zvinotenderedza uye mijaho zvinoshaikwa zvinhu zvinoenderana neaxis uye equidistant kubva kune inokunguruka zvinhu.Dzimwe nguva kune akati wandei seti yemamaki munzira inotenderera.Mutsara uyu unowanzo wanikwa chete mugwara re circumferential rinenge B/d pane denderedzwa rose, ona Mufananidzo 76. Chikonzero: Kusarongeka nekukweshana pakuisa imwe ferrule uye ferrule ine zvinhu zvinokunguruka.Izvo zvine njodzi zvakanyanya kana kufambisa zvikamu zvehuremu hombe (apo shaft yakakora ine mhete yemukati inotakura uye rolling element musangano inosundirwa mumhete yekunze yatoiswa mune inotakura imba).Mushonga: -Shandisa maturusi ekuisa akakodzera - Dzivisa kusarongeka - Kana zvichibvira, tendeuka zvishoma nezvishoma paunenge uchiisa zvinhu.