-ma bere osakhazikika, kapena okhala ndi-miyeso ndi makulidwe osavomerezeka, amagwira ntchito yofunika kwambiri m'malo ambiri apadera ogwirira ntchito ndi zida. Amapereka mitundu yambiri yosiyanasiyana, yomwe ili mwatsatanetsatane pansipa.
Choyamba, palibe-zozungulira zozungulira zakunja. Ma bere awa ali ndi mphete yozungulira yakunja, yomwe imadzipangitsa-kudziyanjanitsa, kubwezera kusayanjanitsa komwe kumachitika chifukwa cha shaft-ku{4}}zolakwika zoyika mipando kapena kupatuka kwa shaft. Amagwiritsidwa ntchito kwambiri pamakina aulimi, ma motors ang'onoang'ono, makina opangira matabwa, ndi zida zina, zomwe zimagwira ntchito m'malo ovuta kwambiri ndipo zimafunikira kusinthasintha kwakukulu. Ndi mphamvu zake zodzigwirizanitsa bwino-zodzigwirizanitsa, zosakhala-zozungulira zakunja zozungulira zimatha kuchepetsa kugwedezeka ndi phokoso panthawi yogwira ntchito, kukulitsa moyo wa zida.
Chachiwiri, pali-mayunitsi osakhazikika. Izi ndizitsulo zophatikizika ndi nyumba, zomwe zimapangitsa kuti zikhale zosavuta kuziyika ndikupereka chithandizo chokhazikika. Malo-osafanana ndi ma bere amabwera m'njira zosiyanasiyana, kuphatikizapo sikweya, diamondi, ndi zozungulira, zomwe zimapangitsa kusankha malinga ndi malo osiyanasiyana oyika ndi zida zofunika. Ma bere awa amagwiritsidwa ntchito kwambiri pamakina amigodi, zida zamankhwala, makina opangira chakudya, ndi zina. Zida m'mafakitalewa nthawi zambiri zimafuna kuyambika ndikuyimitsidwa pafupipafupi kapena zimatengera katundu wolemera wa ma radial ndi axial. -Mayunitsi osayembekezeka ndioyenera kutengera izi.
Chotsatira ndi-zovala zodzigudubuza za singano. Ma bere awa amakhala ndi mainchesi ang'onoang'ono komanso aatali, zomwe zimapangitsa kuti ma roller angapo a singano asanjidwe mkati mwa danga lomwelo la radial, zomwe zimapangitsa kuti pakhale kuchuluka kwamphamvu kwa ma radial. Ndioyenera kugwiritsidwa ntchito pomwe miyeso ya ma radial ndi ochepa koma zolemetsa zolemetsa ziyenera kuthandizidwa, monga ma transmissions amagalimoto, malo olumikizirana onse, ndi zodzigudubuza mumakina a nsalu. Amapereka chithandizo chodalirika m'malo otsekedwa, kuonetsetsa kuti zipangizozi zikuyenda bwino.
Palinso-zozungulira zozungulira. Ma fani ozungulirawa amagwiritsidwa ntchito makamaka kulumikiza zigawo ziwiri zomwe zimasuntha. Amatha kupirira katundu wa radial ndi axial ndipo amatha kuyendayenda mkati mwamtundu wina wamakona. Amagwiritsidwa ntchito kwambiri muzamlengalenga, makina opangira uinjiniya, zida zamankhwala, ndi zina. M'makampani oyendetsa ndege, -mabeya ozungulira ozungulira amagwiritsidwa ntchito m'zigawo zofunika kwambiri monga makina owongolera ndege ndi zida zotera, zomwe zimafuna-kuyenda molongosoka ndi katundu wodalirika{7}}zikuyenda bwino m'malo ovuta kwambiri. M'makina omanga, amagwiritsidwa ntchito polumikizira zida zofukula ndi ma crane boom, kukwaniritsa zofunikira zoyenda pazida izi.
Mtundu winanso wofunikira wa-zopanda mulingo ndi ma turntable non-ma bere. Ma bere awa nthawi zambiri amakhala okulirapo ndipo amatha kupirira nthawi ya axial, ma radial, ndi kugubuduzika. Amagwiritsidwa ntchito makamaka pazida zosiyanasiyana zazikulu zozungulira, monga ma cranes a tower, ma cranes a port, antennas a radar, ndi kukwera kosangalatsa. Zida zonsezi zimafunikira kuzungulira kozungulira, ndipo ma faniko otembenukira-osakhazikika amapereka chithandizo chokhazikika komanso kuthandizira kozungulira kodalirika.
Kuonjezera apo, palinso-ma faniro osakhazikika okhala ndi zida zapadera, monga ma spiral roller non-standard bearings. Zodzigudubuza m'mabeya amenewa ndi ozungulira-ozungulira, ndipo kapangidwe kake kapadera kameneka kamawathandiza kuchita bwino kwambiri popirira kugwedezeka ndi kunjenjemera. Nthawi zambiri amagwiritsidwa ntchito pazida zomwe zimakhala ndi zofunika kwambiri pakugwetsa kugwedezeka komanso kukana mphamvu, monga mabokosi a ma axle a njanji ndi ma crushers. Magalimoto a njanji amakhudzidwa pafupipafupi komanso kugwedezeka panthawi yogwira ntchito. Ma spiral roller omwe sali{{7}panthawiyo) amatha kuyamwa ndi kuteteza mphamvuzi, kumapangitsa kuti galimoto ikhale yokhazikika komanso yotetezeka.
Muzochita zenizeni, mitundu yosiyanasiyana ya-ma bereti osakhazikika imakhala ndi maubwino ake enieni. Okonza ndi ogwira ntchito yokonza zipangizo ayenera kusankha bwino-mtundu woyenerera wogwiritsiridwa ntchito moyenerera, malingana ndi mmene akugwirira ntchito, mmene katundu wake, mmene akufunira, liwiro lake, ndi malo oikapo kuti atsimikizire kuti zikugwira ntchito moyenera komanso{3}}zokhazikika ndi zodalirika kwa nthawi yaitali. Ndi chitukuko chosalekeza ndi luso laukadaulo wa mafakitale, mitundu ya-yomwe siinali yokhazikika ikukulirakulira mosalekeza ndikuwongolera kuti ikwaniritse zosowa zamakampani zomwe zikuchulukirachulukira komanso zovuta.
