U-ring is the most commonly used oil seal in the hydraulic cylinder, it is a typical lip seal, both for the piston or piston rod can get a good sealing effect. Mainly used in heavy-duty walking machinery or industrial hydraulic piston or piston rod seal.
Key advantages
- Excellent wear resistance
- Not sensitive to impact load and pressure peaks
- Very high anti-extrusion ability
- low permanent compression deformation
- apply to harsh conditions
- Easy to install
Technical data
Working pressure: ≤35 Mpa
Speed: ≤0.5 m / s
Temperature: -20 ° C to 100 ° C
Medium: hydraulic oil
Material properties
Material: Polyurethane PU L-93
Hardness: Shore A90 ± 2 UN type universal seal ring
We can design and manufacture various rubber parts, custom-made is welcome
material: NBR, FKM, EPDM, silicon rubber are available.
size: hundreds
custom-made is welcome.
Audited Supplier 
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