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SA is reinforced metal cased radial lip seal. The supplementary metal inner ring provides a superior stiffness. This type is not recommended for use in heavy polluted environments. As the static sealing between housing and metallic shell is limited, low viscosity media can “creep“.

Material
NBR 70 SHORE A
carbon steel
spring steel
MediaMineral oils, Greases
Temperature-35°C / +100 °C
Pressure≤0,5 bar
Speed12 m/s

Product advantages

  • superior radial stiffness, especially for very large diameters
  • very good fitting stability avoiding pop-out of the seal
  • modern lip design provides low radial forces
  • cost effective for expensive elastomer materials
  • suitable for use in combination with axial seal (V-Ring)

Application

Transmission systems (e.g. gearboxes), pumps, electrical motors, machineary industry (e.g. tool machines) heavy engineering applications (e.g. mills in steel industry).

Seal housing tolerance

Ødf8/h11
ØDH8

Installation

Suitable tool should be used for installation. It is recommended that the installation housing is designed to provide the rotary shaft seal with axial support.

Surface roughnessRa(μm)Rz(μm)Rmax
Groove base ØD≤1.6-6.3≤10-25≤25
Shaft≤0.2-0.8≤1.0-5.0≤6.3

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