Rotary Seals

Seven standard profiles are available.  We can also modify profiles to meet your specific requirements.  The R01 and R02 profiles can included a POM insert in order to add rigidity to the outer case. Choose the profile your require and a description of that seal is provided.

R01

R02

R04

R05

R06 VA Style V-Ring

R07 VL Style V-Ring

R19 Flexiseal

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R0-1

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Function

Rotary seals are designed to seal the pressurized fluid against the atmosphere, preventing leakage and pollution of the environment or to transfer liquids and/or gases from a stationary part into or out of rotating machinery.

Features

  • The profile is designed with interference on the OD which provides a good static fit, preventing the entry of humidity and other contamination via the outside diameter.
  • Tight seat in the housing and an additional retainer ring in hard plastic or Aluminum/Steel ensures that the seal is held in place.
  • Tension spring for increasing the bonding force.
  • Not suitable for high pressure from the trailing side.

Application

Pumps, electric motors, swiveling cylinders, etc.

Max. Pressure 0.5 bar, Max. Speed: PU/POM 5 m/s; NBR/POM 10m/s; FKM/PTFE 25m/s.

Installation

Press-in installation; separate installation of retainer ring and elastomer part possible.

R0-2

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Function

Rotary seals are designed to seal the pressurized fluid against the atmosphere, preventing leakage and pollution of the environment or to transfer liquids and/or gases from a stationary part into or out of rotating machinery.

Features

  • The profile is designed with interference on the OD which provides a good static fit, preventing the entry of humidity and other contamination via the outside diameter.
  • Additional dust lip for preventing the sealing lip of dirt.
  • Tight seat in the housing and an additional retainer ring in hard plastic or Aluminum/Steel ensures that the seal is held in place.
  • Tension spring for increasing the bonding force.
  • Not suitable for high pressure from the trailing side.

Application

Pumps, electric motors, swiveling cylinders, etc.

Max. pressure 0.5 bar, max. speed: PU/POM 5 m/s; NBR/POM 10m/s; FKM/PTFE 25m/s.

Installation

Press-in installation; separate installation of retainer ring and elastomer part possible.

R0-4

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Features

  • Asymmetrical, double acting rotary seal, designed with interference on the OD which provides a good static fit in the groove.
  • Dynamic sealing on the ID.
  • Excellent static and dynamic sealing performance.
  • Low friction.

Application

Slow moving shafts, pivoting movements, revolving distributors, swivel joints. Universal rotary seal for minor workloads.

Max. pressure 160 bar, max. speed 0.2 m/s.

Installation

Snap-in installation.

R0-5

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Features

  • Asymmetrical, double acting rotary seal, designed with interference on the ID which provides a good static fit in the groove.
  • Dynamic sealing on the OD.
  • Excellent static and dynamic sealing performance.
  • Low friction.

Application

Slow moving shafts, pivoting movements, revolving distributors, swivel joints. Universal rotary seal for minor workloads.

Max. pressure 160 bar, max. speed 0.2 m/s.

Installation

Snap-in installation.

R0-6 VA STYLE V-RING

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Function

V-Rings are designed to axially seal bearings against dirt, dust, water, etc. in rotating machinery. The V-Ring itself rotates with the shaft.

Features

  • Rotary seal, designed with interference on the ID which provides a good static fit on the shaft and ensures the seal rotates with the shaft. “VA” or “VR1” style.
  • Axial dynamic sealing lip vertical to the r
  • Small contact pressure of the sealing lip that enables also “dry running”.
  • Low friction on the sealing lip – decreasing with the rotation speed as a result of the centrifugal force.
  • Little abrasion and long lifetime.
  • Insurance of sealing also at eccentric rods or rod misalignment.
  • Pressure must be avoided.

Application

Slow and fast rotating shafts.

Secondary sealing element for preventing the primary seal

Max. pressure 0 bar, max. speed 25 m/s.

Installation

Pull-over installation.

R0-7 VL STYLE V-RING

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Function

V-Rings are designed to axially seal bearings against dirt, dust, water, etc. in rotating machinery. The V-Ring itself rotates with the shaft.

Features

  • Rotary seal, designed with interference on the ID which provides a good static fit on the shaft and ensures the seal rotates with the shaft. “VS” or “VR2” style.
  • Axial dynamic sealing lip vertical to the r
  • Small contact pressure of the sealing lip that enables also “dry running”.
  • Low friction on the sealing lip – decreasing with the rotation speed as a result of the centrifugal force.
  • Little abrasion and long lifetime.
  • Ensures sealing also at eccentric rods or rod misalignment.
  • Pressure must be avoided.

Application

Slow and fast rotating shafts.

Secondary sealing element for preventing the primary seal

Max. pressure 0 bar, max. speed 25 m/s.

Installation

Pull-over installation.

R-19 FLEXISEAL

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Features

  • Asymmetrical, single acting rotary seal with clamping flange. “Flexiseal”
  • Preload effected through V-spring.
  • Dynamic sealing lip shorter than static lip to avoid drag pressure.
  • Excellent static and dynamic sealing performance.
  • Useable for short and long stroke lengths.
  • Low friction in dry running or poor lubrication conditions, no stick-slip effect.

Application

Reciprocating and swiveling shafts.

Chemical and pharmaceutical industry, aggressive fluids and high temp. Max. pressure 150 bar, max. speed 2 m/s.

Installation

Installation in open housing.

S1012-M

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Features

  • Symmetrical, single acting piston/rod seal, combined with pressure ring and support ring.
  • By adjusting the number of packings friction and leakage characteristics can be influenced.
  • Excellent static and dynamic sealing performance.
  • Excellent performance in high pressure conditions.
  • Useable for short and long stroke lengths.
  • High wear resistance.

Application

Reciprocating pistons/rods in hydraulic cylinders, plungers etc.

Used in heavy duty applications (presses) with return stroke by equipment weight. Max. pressure 500 bar, max. speed 0.5 m/s.

Installation

Installation normally in open housings.

At closed housings the parts need to be split. In this case the seal must be done  slightly larger (approx. 1% in diameter)