296-6220 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment： 2966220 BALL BEARING Caterpillar parts fit:313D2 LGP, 315C, 315D L, 316E L, 318D L, 318D2 L, 318E L, 319D L, 319D LN, 320D, 320D FM, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E R