Ma Bearings ndi gawo lofunikira pamakina amasiku ano. Ntchito yake yayikulu ndikuthandizira thupi lozungulira pamakina, kuchepetsa kugunda kwapakati pakuyenda kwake, ndikuwonetsetsa kulondola kwake.

Malinga ndi kugundana kosiyanasiyana kwa zinthu zosuntha, ma fani amatha kugawidwa m'magulu awiri: ma bearings oyenda ndi ma sliding bearings.

Zomwe zimagwiritsidwa ntchito pogubuduza ndi mayendedwe ozama a mpira, ma cylindrical roller bearings ndi thrustball bearings. Pakati pawo, mayendedwe ogubuduza adasinthidwa ndikusinthidwa, ndipo nthawi zambiri amakhala ndi magawo anayi: mphete yakunja, mphete yamkati, thupi lozungulira ndi khola.

Mipira yozama ya groovemakamaka kunyamula katundu wozungulira, komanso amatha kunyamula katundu wa radial ndi axial katundu nthawi yomweyo. Ikangoyikidwa pamtundu wa radial, mbali yolumikizana ndi ziro. Mpira wakuya wa groove ukakhala ndi chilolezo chachikulu cha radial, umakhala ndi magwiridwe antchito aang'ono ndipo umatha kunyamula katundu waukulu wa axial. Mkangano wa coefficient of deep groove mpira bearing ndi wochepa kwambiri ndipo liwiro la malire ndilokwera kwambiri.

Mipira yozama ya groove ndiyomwe imayimilira kwambiri ndipo imagwiritsidwa ntchito kwambiri. Ndi yoyenera kugwira ntchito yothamanga kwambiri komanso yothamanga kwambiri, ndipo imakhala yolimba kwambiri popanda kukonza pafupipafupi. Mtundu woterewu uli ndi coefficient yaing'ono yokangana, kuthamanga kwa malire, kapangidwe kosavuta, mtengo wotsika mtengo komanso wosavuta kukwaniritsa kulondola kwakukulu kopanga. Kukula kwake ndi mawonekedwe amasiyanasiyana, ndipo amagwiritsidwa ntchito pazida zolondola, ma mota opanda phokoso, magalimoto, njinga zamoto ndi makina ambiri ndi mafakitale ena, ndipo ndizomwe zimagwiritsidwa ntchito kwambiri pamakampani opanga makina. Makamaka kunyamula katundu radial, komanso kunyamula kuchuluka kwa axial katundu.

Ma cylindrical roller bearings, zinthu zogubuduza zimakhala zozungulira zozungulira zama cylindrical rollers. Ma cylindrical rollers ndi raceways ndi mizere yolumikizana. Kuchuluka kwa katundu, makamaka kunyamula katundu wa radial. Kukangana pakati pa chinthu chogubuduza ndi nthiti ya mphete ndi yaying'ono, yomwe ili yoyenera kusinthasintha kothamanga kwambiri. Malingana ndi ngati mpheteyo ili ndi nthiti kapena ayi, ikhoza kugawidwa m'mizere ya mzere umodzi monga NU, NJ, NUP, N, NF, ndi mizere iwiri monga NNU ndi NN.

Mapiritsi a cylindrical roller opanda nthiti pa mphete yamkati kapena yakunja, mphete zamkati ndi zakunja zimatha kusuntha mogwirizana ndi malangizo a axial, kotero angagwiritsidwe ntchito ngati mayendedwe omasuka. Miyendo ya Cylindrical yodzigudubuza yokhala ndi nthiti ziwiri kumbali imodzi ya mphete yamkati ndi mphete yakunja ndi nthiti imodzi kumbali ina ya mpheteyo imatha kupirira mlingo wina wa axial katundu kumbali imodzi. Nthawi zambiri, khola lachitsulo limagwiritsidwa ntchito, kapena aloyi yamkuwa yotembenuza khola lolimba imagwiritsidwa ntchito. Komabe, palinso gawo la ntchito ya polyamide kupanga khola.

Mapiritsi a thrust amapangidwa kuti azitha kupirira katundu wothamanga kwambiri, ndipo amakhala ndi ma ferru ngati ma washer okhala ndi ma groove othamangitsana mpira. Popeza ferrule ndi mawonekedwe a mpando khushoni, thrust mpira kubala amagawidwa m'magulu awiri: lathyathyathya mpando khushoni mtundu ndi kudzikonda aligns ozungulira mpando khushoni mtundu. Kuphatikiza apo, kunyamula uku kumatha kupirira katundu wa axial, koma osati katundu wa radial.

Mapiritsi a mpiraamapangidwa ndi zigawo zitatu: mpando washer, shaft washer ndi zitsulo mpira khola msonkhano. Chotsukira shaft chimagwirizana ndi shaft ndi mphete yapampando yofanana ndi nyumba. Mipira ya thrust ndi yoyenera pazigawo zomwe zimanyamula katundu wa axial kumbali imodzi ndipo zimakhala ndi liwiro lochepa, monga mbedza za crane, mapampu amadzi oyima, ma centrifuges, ma jacks, ochepetsera otsika, ndi zina zotero. za kunyamula zimalekanitsidwa ndipo zimatha kusonkhanitsidwa ndikugawa padera.