Name： USH/UPH/Y Oil Seal Ring
Material: Nitrile rubber
Size: Inner Diameter x Outer Diameter x Height
Outer diameter: 19.2mm-230mm
Inner diameter: 11.2mm-210mm
Height: 5/6/7/8/9/10/12mm
Pressure: ≤40MPa
Reciprocating piston speed: ≤0.5m/s
Temperature: -20℃~100
Colour: black
Medium: hydraulic oil, emulsion, air.

Product Description:

(1) U-type Y-type sealing ring in the case of low pressure, only through the lip of the interference deformation to produce sealing, due to the contact area is small, the friction is relatively small, with the increase in pressure, the elastic deformation of the lip increases, the tensile, compressive and bending stresses increase, the radial pressure of the U-ring automatically becomes larger, and the contact with the sealing surface of the length of the sealing surface continues to increase until the entire axial length of the U-ring contact with the sealing surface, thus ensuring a good seal under high pressure conditions. This ensures good sealing under high pressure conditions.
(2) U-ring and Y-ring are the most commonly used oil seals in hydraulic cylinders, a typical lip seal, whether used for piston or piston rod can obtain good sealing effect.