1R-5838 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
1R5838 BALL BEARING Caterpillar parts fit:312, 312B, 313B, E120B
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
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4236786 bearings are used in the Excavator Final drive system of Hitachi ：
4236786 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-27-11570 bearings are used in the Excavator Final drive system of KOMATSU：
20Y-27-11570 BEARING KOMATSU parts：PC150HD-5K，PC180LC-5K，PC200-5C，PC200-6Z，PC210-6，PC210LC-5K，PC220-5C，PC220-6Z
