Stenso - Hovedkatalog 2019

D 67 Designations Accofluor’s radial lip seals are designated according to asystem which clearly states the seal series, type, dynamic sealing diameter (shaft), nominal housing groove diameter, housing groove width and material. AF-910-130 /160 x 12-1111S Shaft diameter Housing groove diameter Housing groove width Material code (lip) code (case) Seal Materials The choice of seal materials always includes a compromise between advantages and disadvantages. Slide ring seals can be delivered with slide rings of several different PTFE materials. The materials which we most often suggest are stated below. There are many hundreds of different PTFE materials with variants of fillers, e.g. glass fibre, carbon, graphite, molybdenum disulphide, metal oxides, polymeric fillers and combinations of different fillers. Each possesses different properties appropriate for different applications and working conditions. Unfilled PTFE provides most often a lower friction than a filled PTFE material and the lowest degree of wear of the cylinder tube surface. However, its own resistance to wear and deformation under load is limited. Common for all filled PTFE materials is their different degree of better resistance to wear and deformation. Radi a l l ip sea l Type 284 AF-910