D1X models. F1 - 2 High Speed thrust bearings, 3 deep groove shaft bearings, 2 oil shaft bearings, 2 seals. M1 or P600B - 2 High Speed thrust bearings, 2 deep groove input shaft bearings, 2 seals. D1, oil fed - 3 or 2 High Speed thrust bearings, 2 deep groove input shaft bearings, 2 seals.
