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.
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
207-27-71330 bearings are used in the Excavator Final drive system of KOMATSU：
207-27-71330 BEARING KOMATSU parts： PC290-8K，PC350-8,PC300-8,PC270-8,PC290LC-10,PC360-7,PC308USLC-3E0,PC270-7,PC340LC-7K,PC350-7E0
136-2823 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
1362823 BEARING Caterpillar parts fit:312B, 315B,315D
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
208-27-51240 bearings are used in the Excavator Final drive system of KOMATSU：
208-27-51240 BEARING,BALL KOMATSU parts PC380LC-6K, PC380LC-7K, PC400-6Z, PC400-5, PC400-6Z,PC400LC-7,PC410LC-5,PC450-6,PC600LC-6A
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
