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.
4321887 bearings are used in the Excavator Final drive system of Hitachi ：
4321887 BRG.;ROL. Hitachi parts CHR70, EX100-2, EX100-3, EX100-3C, EX100-5, EX100-5 JPN, EX100M-5, EX120-2, EX120-3, EX120-3C, EX120-5, EX120-5 JPN, EX120-5HG, EX120-5LV JPN, EX120-5X, EX120-5Z, EX120K-2, EX120K-3, EX120SS-5, EX130H
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.
208-27-71210 bearings are used in the Excavator Final drive system of KOMATSU：
208-27-71210 BEARING KOMATSU parts PC400LC-8, PC450-8, PC550LC-8, PC490-10,PC400-7，PC270LL-7L，PC300-7, PC300HD-8，PC350HD-8, PC390LC-10，PC450LC-7,PC490LC-10
XKAH-00340 bearings are used in the final drive Bearing system of HYUNDAI heavy machinery equipment：
XKAH-00340 HYUNDAI BEARING parts
Apply to R140LC-7, R140LC-7A, R160LC7, R160LC7A
20Y-27-22230 bearings are used in the Excavator travel 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
XKAH-00340 bearings are used in the final drive Bearing system of HYUNDAI heavy machinery equipment：
XKAH-00340 HYUNDAI BEARING parts
Apply to R140LC-7, R140LC-7A, R160LC7, R160LC7A
