Mofanana ndi ma bearing a mpira, ma roller bearing ali ndi kulumikizana kwa mzere m'malo molumikizana ndi mfundo, zomwe zimawathandiza kukhala ndi mphamvu zambiri komanso kukana kugwedezeka kwambiri. Ma roller okha amabwera m'mawonekedwe osiyanasiyana, monga cylindrical, spherical, tapered, ndi needle. Ma cylindrical roller bearing amangoyang'anira katundu wochepa wokha. Ma bearing ozungulira ozungulira amatha kulola kusokonekera ndi kugwedezeka kwambiri, ndipo, akamapindidwa kawiri, amakankhidwira mbali iliyonse. Ma bearing ozungulira ozungulira amatha kunyamula katundu wofunikira kwambiri. Ma needle bearing, omwe ndi ma cylindrical roller bearing, amatha kunyamula katundu wolemera kwambiri wa radial malinga ndi kukula kwawo, ndipo amatha kupangidwa ngati ma needle roller thrust bearing.

Ma roller bearing amapezeka ngati mapangidwe owonjezera ndipo ma needle bearing nthawi zambiri amakhala amtunduwu. Ma needle bearing amagwira ntchito bwino kwambiri poyendetsa zinthu mobwerezabwereza, koma kukangana kumakhala kwakukulu chifukwa cha kukanda ma roller-anti-roller.

Mukagwiritsa ntchito mabearing a cylindrical roller pa ma shafts omwe ali ndi misignment ya angular, ndibwino kugwiritsa ntchito mabearing awiri afupiafupi a roller kumbuyo ndi kumbuyo m'malo mogwiritsa ntchito bearing imodzi yayitali ya roller.

Kusankha Mpira kapena Roller Bearing
Kawirikawiri, ma bearing a mpira amagwiritsidwa ntchito pa liwiro lalikulu komanso katundu wopepuka kuposa ma bearing a roller. Ma bearing a roller amagwira ntchito bwino akamagwedezeka komanso akagundidwa.

Maberiya a mpira nthawi zambiri amagulitsidwa ngati ma assemblies ndipo amangosinthidwa ngati mayunitsi. Maberiya a roller nthawi zambiri amatha kuchotsedwa ndipo chonyamulira ma roller ndi ma rollers, kapena ma race akunja kapena amkati, amasinthidwa payekhapayekha. Magalimoto oyendetsedwa ndi mawilo akumbuyo amagwiritsa ntchito makonzedwe otere pamawilo akutsogolo. Ubwino wa kapangidwe kameneka ndikuti ma race amatha kuchepetsedwa kuti agwirizane ndi ma shafts ndi ma housings kuti apange ma assemblies okhazikika popanda kuwononga ma rollers okha.

Ma bearing a mpira wa mzere umodzi ndi ofanana ndipo angagwiritsidwe ntchito mosinthana pakati pa opanga. Ma bearing a roller ndi ofanana pang'ono kotero wofotokozera ayenera kuyang'ana kabukhu ka wopanga kuti asankhe imodzi yoyenera kugwiritsa ntchito.

Ma bearing a zinthu zozungulira amapangidwa ndi malo enaake otseguka mkati. Kusakhazikika kulikonse komwe kumangochotsa mpira pamalo ake ndikuchotsa malo otseguka mkati sikuyenera kukhudza kwambiri moyo wa bearing. Ma bearing a roller amakhala omasuka kwambiri ndi malo ozungulira. Mwachitsanzo, bearing ya mpira yomwe ikuyenda mofulumira pang'ono komanso yomasuka bwino ingagwire ntchito bwino ndi malo ozungulira ozungulira ozungulira okwana 0.002 mpaka 0.004 in./in. pakati pa bearing ndi shaft. Bearing ya cylindrical roller, poyerekeza, ikhoza kukhala ndi vuto ngati malo ozungulira opitilira 0.001 in./in. Opanga nthawi zambiri amapereka mitundu yovomerezeka ya malo ozungulira ozungulira pa ma bearing awo.