Scratch phenomenon nyob rau sab nraud txoj kab uas hla ntawm cov kabmob dov cov ntsiab lus: circumferential dents nyob rau hauv lub cheeb tsam ntawm lub dov ntsiab.Feem ntau muaj qhov sib npaug ntawm qhov sib npaug ntawm cov chais, saib daim duab 70 thiab 71, thiab qhov tshwm sim "hairball" feem ntau tshwm sim rau cov pob, saib daim duab 72. Tsis txhob tsis meej pem nrog cov kab ntug (saib ntu 3.3.2.6).Lub ntug ntawm txoj kev tsim los ntawm ntug kev khiav yog du vim yog cov yas deformation, thaum khawb muaj cov npoo ntse.Cov khoom tawv tawv feem ntau ua rau hauv cov hnab ris hauv tawb, ua rau khaus, saib daim duab 73. Ua rau: Cov roj nplua nyeem tsis huv;Cov khoom tawv tawv uas tau muab tso rau hauv lub tawb hnab ris ua zoo li cov khoom sib tsoo ntawm lub log sib tsoo: - lav kev txhim kho huv si - txhim kho sealing - lim tawm cov roj nplua nyeem.

Slip marks tshwm sim: dov cov ntsiab lus plam, tshwj xeeb tshaj yog cov menyuam loj thiab hnyav, xws li INA tag nrho cov menyuam bearings.Slip roughens raceways lossis dov cov ntsiab lus.Cov khoom feem ntau tsim nrog cov cim rub.Feem ntau tsis sib npaug ntawm qhov chaw tab sis nyob rau hauv cov chaw, saib daim duab 74 thiab 75. Cov pitting me feem ntau pom, saib nqe lus 3.3.2.1 "Kev qaug zog vim tsis zoo lubrication".Ua rau: - Thaum lub load tsawg dhau thiab lubrication tsis zoo, cov ntsiab lus dov plam ntawm txoj kev sib tw.Qee lub sij hawm vim tias thaj tsam ntawm cov kabmob me me dhau lawm, cov chais decelerate sai sai hauv lub tawb hnab ris hauv qhov chaw tsis thauj khoom, thiab tom qab ntawd nrawm nrawm thaum nkag mus rau thaj tsam ntawm cov kabmob.- Kev hloov pauv ceev ceev.Kev ntsuas kev kho mob: - Siv cov kabmob uas tsis muaj peev xwm thauj khoom - Preload cov kabmob, xws li nrog cov springs - Txo cov kabmob ua si - xyuas kom txaus thauj khoom txawm tias khoob - Txhim kho lubrication

Bearing scratching phenomenon: Rau cov cylindrical roller bearings sib cais los yog tapered cov menyuam bearings, lub dov cov ntsiab lus thiab raceways yog ploj lawm cov khoom uas yog parallel mus rau lub axis thiab equidistant los ntawm dov cov ntsiab lus.Qee lub sij hawm muaj ob peb txheej ntawm cov cim nyob rau hauv cov kev taw qhia circumferential.Cov kab no feem ntau pom tsuas yog nyob rau hauv qhov kev taw qhia ncig ntawm B / d es tsis yog tag nrho cov ncig, saib daim duab 76. Ua rau: Kev sib tsoo thiab sib tsoo sib tsoo thaum txhim kho ib qho ferrule thiab lub ferrule nrog dov cov ntsiab lus.Nws yog qhov txaus ntshai tshwj xeeb tshaj yog thaum txav cov khoom loj loj (thaum cov ncej tuab nrog cov kabmob puab lub nplhaib thiab cov khoom sib dhos yog thawb rau hauv lub nplhaib sab nraud uas twb tau teeb tsa hauv cov kabmob vaj tse).Kev Kho: - Siv cov cuab yeej tsim nyog - Zam kev tsis raug - ​​yog tias ua tau, tig maj mam thaum txhim kho cov khoom.