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
198-5018 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
1985018 BEARING Caterpillar parts fit:304.5, 305CR, 304CR, 305.5, 306
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
102-6525 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
1026525 BEARING Caterpillar parts fit:312, 315, 317 & 317N
136-2823 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
1362823 BEARING Caterpillar parts fit:312B, 315B,315D
