Bearings,as important components in contemporary mechanical equipment,mainly support the mechanical rotating body,which can reduce the friction coefficient during its movement and ensure its rotation accuracy.
4219328 bearings are used in the Excavator Final drive system of Hitachi :
4219328 BRG.;ROL. Hitachi parts EX700, EX750-5, EX800H-5, ZR900TS, ZX1000K-3, ZX800, ZX850-3, ZX850-3F, ZX850H, ZX850LC-3-DH, ZX870-5G, ZX870H-3, ZX870H-3-HCMC, ZX870H-3F, ZX870H-5G, ZX870LC-5B, ZX870LC-5G, ZX870LCH-5G, ZX870LCR-5G
UC207 bearings are with round bore, with dimension 35 mm ID, 72 mm OD, 42.9 mm Width and chrome steel Gcr15 material ,we have bearings in production ,free sample can be provide before order .