Thekuphamakamaka amapangidwa ndi mphete yakunja, mphete yamkati, zinthu zogudubuza, chipangizo chosindikizira ndi chopaka mafuta.Ndi chithandizo chothandizira chomwe chimatha kunyamula katundu wa axial, katundu wa radial ndi kugubuduza katundu nthawi yomweyo.Zinthu monga mphamvu yonyamula katundu.Slewing bearing ndi mtundu watsopano wamakina omwe apangidwa pang'onopang'ono ndi chitukuko cha makina opanga makina padziko lonse lapansi zaka 50 zapitazi.Yakula pang'onopang'ono kuchokera ku ma cranes a tower, ma cranes amagalimoto, ndi zokumba mpaka kumakina oyendetsa ndi makina azitsulo., makina opangira chakudya, zida zankhondo (akasinja, mfuti zotsutsana ndi ndege, radar, zoyatsira rocket), makina azachipatala, makwerero, makina opangira mphepo, maloboti, malo osangalatsa ozungulira ndi magawo ena.

Kukula kwakuphazopangidwa ku China zinayamba mochedwa, ndiye kuti, zinalibe sikelo inayake mpaka kumapeto kwa zaka za m'ma 1970 ndi koyambirira kwa 1980.Poyamba, mzere umodzi wolumikizana ndi mpira wa mfundo zinayikuphainali yogwiritsidwa ntchito kwambiri pamsika, ndipo kuchuluka kwa mpikisano kunali pakati pa Φ500~Φ1500mm, kuwerengera ambiri aiwo;tsopano, ndi chitukuko cha makina omanga, magalimoto apadera ndi maloboti mafakitale Ndi chitukuko cha kupha zinthu zonyamula katundu, pamene kufunikira kwa kupha zonyamula katundu zikuwonjezeka tsiku ndi tsiku, zofunika apamwamba amaika patsogolo khalidwe ndi luso la mankhwala.

Poyerekeza ndi zam'mbuyo, tsopano zowombera zili ndi mitundu yambiri, monga:

1. Mzere umodzi wolumikizana ndi mawonekedwe a mpira
2. Mzere umodzi wozungulira mawonekedwe
3. Mizere iwiri yosiyana ya mpira ndi mizere iwiri ya mpira
4. Kapangidwe ka mizere itatu
5. Mpira & Roller kuphatikiza

Ndipo tsopano kulondola ndikokwera, tithanso kukukuta mano kuti tigwire giredi 6 yolondola.

Pakuti zopangira, ife osati ndi zambiri zakuthupi 50MN, 42CRMO, tsopano tikhoza ndi C45, S48C, kapena kalasi dziko lina, ngakhale zitsulo zosapanga dzimbiri 2CR13.

Ngati mukufuna odana ndi dzimbiri, tikhoza kuchita mankhwala pamwamba monga kupenta, galvanizing, matenthedwe kupopera nthaka nthaka, nickel plating, etc.

Pakalipano, zogwirira ntchito zapakhomo zakhala zikukula mosalekeza ndikupita kumsika wapamwamba kwambiri.