Qaybaha qodista EX40-2 Track roller
Jidka HitachirullaluistemadkaEX40-2 waa qalab hoos yimaada oo si gaar ah loogu habeeyey qodista nooca Hitachi EX40-2. Shaqadeeda ugu muhiimsan waa in ay taageerto miisaanka jidhka qodista, taas oo u sahlaysa qodista in uu si habsami leh ugu socdo xaaladaha dhuleed ee kala duwan. Qalabka jirka giraangiraha guud ahaan waa 50Mn, 40Mn2, iwm. Ka dib markii la been abuurtay, machining iyo daaweynta kulaylka, engegnaanta ee deminta dusha giraangiraha u baahan yahay si ay u gaaraan HRC45 ~ 52 si loo hubiyo caabbinta abrasion wanaagsan iyo awoodda qaadista load.
Halkan ku qor fariintaada oo noo soo dir