Product introduction: Under the condition of low pressure, the U-shaped Y-shaped sealing ring only relies on the interference deformation of the lip to produce the seal. Due to the small contact area, the friction force is relatively low. As the pressure increases, the elastic deformation of the lip increases. The tensile, compressive and bending stresses increase, the radial pressure of the U-shaped ring automatically increases, and the length of contact with the sealing surface continues to increase until the entire axial length of the U-shaped ring is in contact with the sealing surface, thereby ensuring good sealing under high pressure. . U-shaped Y-shaped seal is the most commonly used oil seal in hydraulic cylinders. It is a typical lip seal and can obtain a good seal whether it is used for piston or piston rod.

Nitrile rubber/ NBR Rubber 
Working temperature: -20℃～+100℃.
Pressure: ≤40MPa. 
Hardness: 80°
Medium: hydraulic oil, emulsion, air.
Reciprocating speed: ≤0.5m/s  

Features: 
1: Dual-purpose seal ring for shaft and hole.
2: The inner lip and outer lip are the same high.
3: Good sealing performance, easy installation, wear resistance, impact resistance, small compression deformation ect.
To avoid damage to the sealing lip, take measures to avoid sharp edges during installation. 

Product advantages:

1. Good sealing performance and easy installation;

 2. Resistance to impact pressure;

3. Allow larger extrusion gap;