The cuffs made of polyurethane have a symmetrical profile, i.e. the sealing lips are the same length. This design allows these cuffs to be used for both rod and single-acting piston seals.
Pros
Highly flexible and easy assembly in closed room
Very good oil resistance
High tensile strength
High wear resistance
Suitable for both rod sealing and piston sealing
Product details
Seal for double-acting and single-acting cylinders
Temperature range: -30°C to 100°C
Material : polyurethane
Symmetrical profile
Max. 400 bar
Series U type PU seals are replaced by Series SA-UN seals
Types 605 and 663 have an asymmetrical profile* and are therefore only suitable for sealing piston rods. So never mount on a piston!
Type 601 has a symmetrical profile* and is therefore suitable for both piston rod sealing and piston sealing.
*Asymmetrical profile: the inner lip is shorter than the outer.
*Symmetrical profile: both the inner and outer sealing lips are the same height.
For an application specifically as a piston seal, please refer to type ZA-UN under piston seals.