Material: Nitrile rubber (NBR) -20℃ - +100℃
Pressure:＜40MPa.
Medium:Rolling oil, emulsion, air.
Reciprocating speed:<0.5m/s.
Product Description
U-shaped Y-type sealing ring in the case of low pressure, only by the lip of the interference deformation to produce a seal, because the contact area is small, the friction is relatively low, as the pressure rises, the lip of the elastic deformation increases, the tensile, compressive and bending stress increases, the radial pressure of the U-type ring automatically becomes larger, and the sealing surface contact with the length of the U-type ring continues to increase until the U-type ring of the entire axial length of the sealing surface in contact with the sealing surface, so as to ensure that the high-pressure state of good sealing performance. This ensures good sealing performance under high pressure.
U-ring is the most commonly used oil seal in hydraulic cylinders, it is a typical lip seal, no matter used for piston or piston rod can get good sealing.
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