Rullalulatu waxay ka kooban tahay qalabyo kala duwan, oo ay ku jiraan rullaluistemadka guryaha sidda, rullaluistuleyda, shaabadda rullaluistu, bracket, meel bannaan oo sleeve, jillaab laablaab, rullaluistemadka kabka, pin cylindrical, rullaluistemadka , wareeg iyo dharbaaxayaal. Qalabka Roller-ka ayaa door muhiim ah ka ciyaari kara iyo qiimaha isticmaalka rollers, kaas oo gacan ka geysan kara isticmaalka iyo dayactirka rollers. Aan eegno doorka qalabyada rullaluistemadka.
2, rullaluistemadka: dhalista waa qayb muhiim ah oo ka mid ah rullaluistemadka, tayada si toos ah u saameeyaa nolosha adeegga rullaluistemadka. Si loo hubiyo isku halaynta badeecada, shirkadda Aohua waxay dooranaysaa rullaluistuyada si aad uga taxaddar badan xulashada qalabka kale ee rullaluistuyada.
3, shaabadeynta rullaluistemadka: shaabadeynta rullaluistemadka waxaa loo qaybiyaa polyetylen iyo naylon. Qiimaha polyetylen waa mid hooseeya, laakiin caabbinta xirashadu waa mid aad u liidata, liddi ku ah, qiimaha daboolka ee alaabta nylon waa mid aad u sarreeya, laakiin caabbinta xirashadu waa mid sarreeya (si loo ogaado haddii ay tahay walxaha naylon, shaabadda ayaa la gelin karaa biyaha, quusta waa shaabadda walxaha nylon, sabaynta biyaha dusheeda waa shaabadda maaddada polyetylen). Shaabada Idler waxa loo qaybiyaa nooca TD75, nooca DTII, nooca TR, nooca TK, nooca QD80, nooca SPJ iyo wixii la mid ah ku dhawaad toban nooc iyadoo loo eegayo nooca idler. Shirkadda Aohua waxay leedahay hab shaabad gaar ah oo gaar ah, qeexitaankeeda iyo moodooyinka ay dhammaystiran yihiin, waxaan helnay amaanta macaamiisha badan ee suuqa gudaha iyo dibedda ka dib sanado badan oo tijaabo ah iyo bandhig injineerro xirfad leh.
4, dabada rullaluistemadka: dabada rullaluistemadka waxa loo qaybiyaa dabada bir qabow-jiiday iyo sallaan dabada. dulqaadka faashashka waxaa lagu xakameynayaa hal xarig marka aan dooraneyno faashad.
5, wareeg: wareegga rullaluistemadka waxaa laga sameeyey bir guga, kaas oo ka ciyaara doorka hagaajinta rullaluistemadka. Guga tayada wanaagsan wuxuu leeyahay barti wanaagsan iyo kala duwanaansho. qulqulka shaqo la'aanta si fiican ayaa looga hortagi doonaa saameynta xoogga dibadda.
6, slinger: qaybaha hagaajinta ee dabada waxay u qaybsan yihiin hagaajinta axial iyo hagaajinta radial.