Metric Double Row
Tapered roller bearings are separable bearings, and both the inner and outer rings of the bearing have tapered raceways.
Double row tapered roller bearings have many structures, the largest is the 35000 type, which has a double raceway outer ring and two inner rings, and there is a spacer between the two inner rings, and the clearance can be adjusted by changing the thickness of the spacer. This type of bearing can bear two-way axial load while bearing radial load, and can limit the axial displacement of the shaft and the housing within the range of the bearing's axial clearance.
When assembling for the first time, it is recommended to apply grease on the outer ring to fill the gap between the cage and the inner ring. If filling by hand, squeeze the grease from the big end of the bearing cage to the small end to ensure even distribution of the grease. It is best to block the grease around the bearing with an oil shield. In any case, when determining the oiling cycle, the operation should be considered. temperature and sealing effect. The higher the temperature, the faster the oil is oxidized, and the temperature increases by 10°C. Grease life is cut in half. Therefore, in most cases, the preload and rigidity of the bearing are determined according to the operating experience.