Product category:
Seals
News Release from: Freudenberg Simrit LP | Subject: Radiamatic Simmerring
Edited by the Engineeringtalk Editorial
Team on 14 October 2003
Large bearing seals protect green energy
sources
The Radiamatic Simmerring has already proved its worth and reliability as a rotor bearing seal for wind power plants.
The Radiamatic Simmerring has already proved its worth and reliability as a rotor bearing seal for wind power plants These large rotary shaft seals, which take the form of molded, endless rings, are used to seal large diameters of between 200 and 3000mm
This article was originally published on Engineeringtalk on 18 Feb 2003 at 8.00am (UK)
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Cover Seal is a one-piece double-acting polyurethane compact seal designed to provide static sealing for rods and pistons in hydraulic or pneumatic systems at operating pressure levels abovve 5MPa.
This allows for great dimensional accuracy.
A tension spring made of a stainless material facilitates permanent sealing lip contact pressure.
The Radiamatic has an extra-large outer diameter, which is lightly compressed to fit the nominal outer diameter during assembly.
In addition, a metallic cover plate ensures axial compression in the housing, thereby guaranteeing a secure fit and static imperviousness.
Profiles and sealing cords in the form of endless or fixed length seals are used for even greater seal contact areas such as those found in rotating assemblies for gondolas and blade bearings.
The cross section of the Radiamatic can be as large as 3000mm2.
Where necessary, it can be manufactured with eigen curvature and fitted with a spring.
The particular advantages of these large seals are the low tool costs (even for small batches) and the broad selection of materials.
The standard material used for large bearing and rotating assembly seals for wind power plants is the wear-resistant NBR.
However, as a result of its high thermal stability and excellent ozone resistance, the more resistant HNBR is often used for rotor bearing seals.
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