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Elastomeric high performance rotary shaft seals type AC with two sealing lips back-to-back. Ideal for the correct separation of two media. The seal consists of a metallic support body according to DIN 1624 and two elastomer precision diaphragm sleeves. In contrast to shaft seals according to DIN 3760, this design allows considerably higher speeds and pressures to be sealed. With these shaft seals, the inherent elasticity of the sleeve material is responsible for the spring properties, the pretension. There is no need for an additional worm spring.
Versatile fluids used in rotary applications with appropriate choice of material and initial greasing, even deficient lubrication is possible.
Standard material: NBR and FKM as well as various application-optimised elastomer compounds
A prerequisite for the proper functioning of the seal is careful installation in accordance with DIN 3760. Clean the installation spaces, grease the seal and shaft, chamfer or cover sharp edges, do not tilt the seal ring when pressing it in, apply the pressing force close to the outside diameter, the seal must be centred and at right angles to the shaft after installation. To exclude medium contamination by the sealing ring grease, a single-lip type WA or WB can be fitted upstream, depending on the direction of pressure. It is important that adjacent machine parts do not restrict the functional space of the sealing lip, i.e. the sealing lip should have a minimum distance of 1.5 mm to the next machine part when mounted. When using the double-lipped types, the annular space between the two sealing lips is filled to two thirds with grease in order to avoid dry running of the lip facing away from the medium.
Various applications for sealing rotating or swivelling machine elements, e.g. in the chemical and process technology, aerospace, shipbuilding industry, motor sports or for electric drives in general industry and the automotive industry. By using correspondingly compliant materials, applications in the food and pharmaceutical industries can also be covered.
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