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
06000-22326 bearings are used in the Excavator Slewing gearbox system of KOMATSU：
06000-22326 BEARING KOMATSU parts： PC550LC-8, PC400LC-6Z, PC400-7E0, PC400-8, PC400-5D, PC450LC-7, PC410-5, PC750SE-7, PC750-6, PC800SE-7, PC800SE-8, PC800-6, PC1000-1,PC490LCI-11
20Y-27-22230 bearings are used in the Excavator Final drive system of KOMATSU：
20Y-27-22230 BEARING KOMATSU parts:PC220LC-8,PC240-8K,,PC228US-8,PC100L-6,PC158USLC-2,PC158US-2,PC200-6Z,PC200-7,PC210-6,PC210-7
207-27-61310 bearings are used in the Excavator Final drive system of KOMATSU：
207-27-61310 BEARING KOMATSU parts PC250, PC250HD-6Z, PC300, PC300SC,PC300-5，PC300-6， PC310, PC340-6K，PC340, PC350，PC350-6
209-27-61360 bearings are used in the Excavator Final drive system of KOMATSU：
209-27-61360 BEARING KOMATSU parts： PC1250LC-8，PC700LC-8E0,PC1250-7,PC650-5,PC710-5,PC750SE-6,PC750LC-7,PC800SE-8,PC850-8
