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.
421-22-12790 bearings are used in the Loader Gearbox Bearing system of komatsu heavy machinery equipment：
421-22-12790 BEARING KOMATSU parts 542, 545, HM350, HM400, WA420, WA470
170-09-13220 bearings are used in the Bulldozer Bearing system of Komatsu heavy machinery equipment：
170-09-13220 BEARING KOMATSU parts D150A, D155A, D155C, D155S, D155W
279-0344 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
2790344 BEARING AS-TAPERED ROLLER Caterpillar parts fit:336 , 340 , 336F , 336D2 L , 340F, 335F L ,345 GC, 330D, 330C, 328D L
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
207-27-51220 spare parts are used in the Excavator Final drive system of KOMATSU：
207-27-51220 BEARING KOMATSU parts PC250LC-6LE PC300-5 PC300-3 PC300-5K PC310-5
4219329 bearings are used in the Excavator Final drive system of Hitachi ：
4219329 BRG.;ROL. Hitachi parts EX700, EX750-5, EX800H-5, ZR900TS, ZX1000K-3, ZX800, ZX850-3, ZX850-3F, ZX850H, ZX850LC-3-DH, ZX870-5G, ZX870H-3, ZX870H-3-HCMC, ZX870H-3F, ZX870H-5G, ZX870LC-5B, ZX870LC-5G, ZX870LCH-5G, ZX870LCR-5G
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
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
XKAQ-00218 bearings are used in the final drive Bearing system of HYUNDAI heavy machinery equipment：
XKAQ-00218 HYUNDAI BEARING parts
Apply to R110-7, R110-7A, R140LC-7, R140LC-7A, R140LC9, R140LC9A, R140LC9S, R160LC7, R160LC7A, R160LC9, R160LC9A, R160LC9S, R180LC7, R180LC7A, R180LC9, R180LC9A, R180LC9S, R210LC7, R210LC7A, R210LC7H
