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.
4224213 bearings are used in the Excavator Final drive system of Hitachi ：
4224213 BRG.;ROL. Hitachi parts CX1000, CX1100, CX1800, CX900, EX1100, EX1100-3, EX1200-5, EX1200-5C, EX1200-5D, EX1200-6, EX800H-5, HR1200SG, KH850-3, TL1100-3, ZX1800K-3, ZX800, ZX850-3, ZX850H
20Y-26-22330 bearings are used in the Excavator Slewing gearbox system of KOMATSU：
20Y-26-22330 BEARING KOMATSU parts：PC200-8,PC228US-8, PC200LC-8E0, PC200-6, PC200-7
333-2914 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
333-2914 BALL BEARING Caterpillar parts fit:325B L, 325B, 322B L, 322C , 325D, 324D,329D L, 323D
136-2823 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
1362823 BEARING Caterpillar parts fit:312B, 315B,315D
102-6525 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
1026525 BEARING Caterpillar parts fit:312, 315, 317 & 317N
206-26-71270 bearings are used in the Excavator final drive system of KOMATSU：
206-26-71270 BEARING KOMATSU parts：PC300-8, PC350-8, PC360-10, PC350-8MO, PC300-7, PC360-7, PC340-7, PC380-7, PC390-10.
