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U4250 U-bush PU 42 x 50 x 8

Part number
U4250
EAN8719774237315
Unit
Each
Long description
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.
Properties
  • Highly flexible and therefore easy to install in enclosed chambers
  • Highly oil-resistant
  • High tensile strength
  • High level of wear-resistance
  • Suitable for use as a piston rod seal or piston gasket seal
dInside diameter
42 mm
DOutside diameter
50 mm
HWidth
8 mm

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