7J-3297 bearings are used in the Bulldozer Self-calibrating spherical bearing of Caterpillar heavy machinery equipment：
Caterpillar ：TRACK-TYPE TRACTOR D8R D8R II D8T D9R D9T
208-27-62110 bearings are used in the Excavator Final drive system of KOMATSU：
208-27-62110 BEARING KOMATSU parts PC550LC-8,PC400LC-6Z,PC400-6,PC600LC-7,PC600-8,PC600LC-6APC650LC-7
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
417-22-11850 bearings are used in the Loader Gearbox Bearing system of Caterpillar heavy machinery equipment：
417-22-11850 BEARING KOMATSU parts: HM300TN-1,WA100-3A,WA120-3,WA100-1,WA200-1,WA180-3,WA150-5,WA250-3,
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
XKAH-00015 bearings are used in the Hyundai's final drive crankshaft .heavy machinery equipment：
XKAH-00015 HYUNDAI BEARING parts
Apply to R140LC-7, R210LC7, R210NLC7
