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.
4200411bearings are used in the Excavator Final drive system of Hitachi ：
4200411 BRG.;ROL. Hitachi parts 218HSL, CX400, CX500, CX500DR, CX500S, CX550, EX300-5, EX300LC-5M, EX300LCLL-5, EX300LCLL-5M, EX345USR(LC), EX350H-5, EX350K-5, EX370-5M, EX370HD-5, EX370LL-5M, EX385USR, EX400, EX400-3, EX450MT-5
4192639 bearings are used in the Excavator Final drive system of Hitachi ：
4192639 BRG.;ROL. Hitachi parts EX60-2, EX60-3, EX60LCK-3, EX60LCT-3, EX60T-2, EX90
