Kuberekandi imodzi mwa zigawo zamakina zomwe zimagwiritsidwa ntchito kwambiri, zonyamula kuzungulira ndi kubwereza kusuntha kwa shaft, kotero kuti kuyenda kwa shaft kumakhala kosalala ndikuchithandizira. Ngati mayendedwe agwiritsidwa ntchito, kukangana ndi kuvala kumatha kuchepetsedwa. Kumbali ina, ngati khalidwe lonyamula lili lochepa, limayambitsa kulephera kwa makina, kotero kubereka kumaonedwa kuti ndi chimodzi mwazinthu zofunika kwambiri zamakina.

Pali mitundu iwiri ikuluikulu ya mayendedwe: mayendedwe otsetsereka ndikugudubuza mayendedwe.

Plain bearing:

Ma bearings osalala nthawi zambiri amakhala ndi mpando wokhala ndi chitsamba chonyamula. Mu mayendedwe omveka, shaft imalumikizana mwachindunji ndi pamwamba. Ikhoza kukana kuthamanga kwakukulu ndi katundu wokhudzidwa. Zovala zowoneka bwino zimagwiritsidwa ntchito mu injini zamagalimoto, zombo ndi makina.

Ndi filimu yamafuta yomwe imathandizira kuzungulira. Filimu yamafuta ndi filimu yopyapyala yamafuta. Pamene kutentha kwa mafuta kukwera kapena kudzaza, filimu yamafuta imakhala yochepa kwambiri, kuchititsa kuti zitsulo zigwirizane ndi kuyaka.

Zina ndi izi:

1. Katundu wololedwa ndi waukulu, kugwedezeka ndi phokoso ndizochepa, ndipo ntchitoyo ikhoza kukhala chete.

2. Pochita zokometsera ndi kukonza, moyo wautumiki ungagwiritsidwe ntchito mokhazikika.

Kupiringa:

Zopiringiza zimakhala ndi mpira kapena roller (zozungulira) kuti muchepetse kukangana. Mapiritsi ogubuduza akuphatikizapo: mayendedwe a mpira wakuya, mayendedwe a mpira ozungulira, mayendedwe a tapered roller, thrust bearings, etc.

Zina ndi izi:

1. Kukangana koyambira kochepa.

2. Poyerekeza ndi mayendedwe otsetsereka, pali mikangano yochepa.

3.Chifukwa kukula ndi kulondola ndizokhazikika, ndizosavuta kugula.

Pomaliza, mayendedwe ndi chimodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri (zigawo zokhazikika) pamakina amakina. Kugwiritsa ntchito ma bearings bwino kumatha kupititsa patsogolo magwiridwe antchito ndikuchepetsa mtengo, chifukwa chake ndikofunikira kwambiri kudziwa zambiri zama bere.