Thrust bearing installation
The full complement of the thrust bearing and the shaft is generally a transition fit. The fit between the race and the bearing bore is generally a clearance fit. Therefore, the bearing is easier to install. The middle shaft of the two-way thrust bearing should be fixed on the shaft to prevent relative The shaft rotates. The mounting method of the bearing is generally the case where the shaft rotates. Therefore, the cooperation between the inner ring and the shaft is a win-win cooperation, and the cooperation between the outer ring of the bearing and the bearing chamber is a clearance fit.
Press fit
The inner ring of the bearing is tightly matched with the shaft. When the outer ring and the bearing housing hole are loosely fitted, the bearing can be press-fitted on the shaft first, and then the shaft is fitted into the bearing housing hole together with the bearing. On the end face of the bearing inner ring, the gasket is made of a soft metal material (copper or mild steel). The inner diameter of the assembly sleeve should be slightly larger than the diameter of the journal. The diameter of the outer diameter should be slightly smaller than the inner ring of the bearing to avoid Press on the cage.
Second, cleaning bearings and related parts
For grease-lubricated FAG spherical roller bearings and double-sided oil seals or dust caps, seal bearings do not need to be cleaned before installation. Check the size and finishing of the relevant parts.
1, grease lubrication
Relubrication of FAG spherical roller bearings is best carried out during planned equipment downtime and is periodically replenished, while removing old grease or extruding old grease through the drain. Wipe the grease fittings clean before adding fresh grease. If the bearing housing does not have a grease fitting, the bearing housing cover or end cap should be opened to remove the old grease and, after cleaning, replenish the same type of fresh grease.
2, lubricating oil lubrication
Regularly check the oil level and oil quality of the lubricating oil. Under normal circumstances, the normal oil level should be within the range of 1/3-2/3 of the equipment oil level window or mark. The oil filling method is oil cup, the oil level shown only represents the oil replenishing capacity, and the bearing tank oil level is to meet the operation requirements. The oil level in the oil cup is less than 1/4 of its total volume.
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