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
198-5018 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
1985018 BEARING Caterpillar parts fit:304.5, 305CR, 304CR, 305.5, 306
163-1656 163-1657 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
1631656 1631657 SPECIAL TAPERED Caterpillar parts fit: 374F L , 365B L , 345B , 365C L , 374D L, 374F L.
