Having been used very widerly in hydraulic cylinders, USH can be used for piston and rod applications because of having the height of both sealing lips equal.          
Standardized with the materials of NBR 85 shore A, USH is also manufactured with Viton (FKM)material.          

Technical Data   
Pressure: 150 Bar   
Temperature: NBR -35 to +105 
                   FKM -35 to +200  
Speed: 0.5m/s    
Media: Hydraulic oils (mineral oil-based)    
   
Material   
Material: NBR / FKM   
Hardness: 852 Shore A    
Color: Black / Brown   
   
Advantages   
High resistance to high temperature   
High abrasion resistance   
Low compression set   
Easy installation