| Material: | HNBR |
|---|---|
| Application: | Lip Base Material Abbreviation |
| Effect: | Fixture&Sealing |
|
Still deciding? Get samples of US$ 642.5/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Sealing principle:
Because there is an oil film controlled by the cutting edge of the oil seal between the oil seal and the shaft, this oil film has the characteristics of fluid lubrication. Under the action of liquid surface tension, the stiffness of the oil film just makes the contact end of the oil film and air form a crescent surface, which prevents the leakage of working medium and thus realizes the sealing of the rotating shaft. The sealing ability of the oil seal depends on the thickness of the oil film on the sealing surface. If the thickness is too large, the oil seal leaks. If the thickness is too small, dry friction may occur, causing oil seal and shaft wear; There is no oil film between the sealing lip and the shaft, which is easy to cause heat and wear.
Therefore, when installing, it is necessary to coat some oil on the sealing ring and ensure that the product is perpendicular to the axis line. If it is not perpendicular, the sealing lip of the oil seal will drain the lubricating oil from the shaft, which will also lead to excessive wear of the sealing lip. In operation, the lubricant in the shell slightly oozes out, so as to achieve the ideal state of forming an oil film at the sealing surface.
Function:
Generally, it is to isolate the parts that need lubrication from the output parts, so as not to let the lubricating oil leak. It is usually used for rotating shafts, and it is a kind of rotating shaft lip seal. The skeleton, like the steel bar in the concrete member, plays a reinforcing role and keeps the shape and tension of the oil seal.
){kind=link}