I use the pump shaft, in the framework of the oil seal often grinding groove, lubricating oil will leak from this groove, there is no grinding shaft oil seal
- never grinding shaft oil seal; adopts inner and outer double ring composite structure; the inner and outer ring can rotate relatively; the design principle of the similar bearing
You can try to contact the skeleton with the oil seal at the axis of a shaft, and other problems, you can change the shaft directly, it will reduce some costs. Personally think that the oil seal of the grinding shaft even if there will be more expensive, is to rely on oil seal effect and stepping up the shaft, is bound to cause some wear and seal materials also have a certain relationship, you can choose some low hardness material.
The friction form between the common oil seal and the shaft is changed to the form of self friction in the oil seal. In the working state, the rigid outer ring is relative to the equipment body and the inner ring is tightly clamped on the rotating shaft,
