PU oil seal is a kind of seal made of PU material. It is composed of at least a pair of sections perpendicular to the axis of rotation, under the action of fluid pressure and the elastic force of the compensation mechanism, and the auxiliary seals are matched with each other, and the two maintain a close fit and relative sliding to prevent liquid leakage.
Common PU oil seals are KDAS, DKBI, HBY, UN, IDI, DHS and so on.
PU oil seals have excellent wear resistance and are mainly used for hydraulic cylinders.
In medium and high pressure hydraulic cylinders, easy to install polyurethane oil seals are the first choice for many people. In addition to scraping off the dust on the piston rod, it can also prevent external impurities from entering the inside of the hydraulic system, thus achieving excellent sealing performance.
The ozone resistance of PU oil seals is also excellent, and it can be applied to many harsh working conditions.
Advantages of PU oil seal:
- Property stable and the sealing effect is good
- Effectively prevent the entry of external impurities and eliminate external interference
- Simple manufacturing structure and convenient installation
- PU oil seal has long service life and easy installation and disassembly
