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WELL SUPPORTED WITH BEARINGS.
Bearings Bearings support rotating shafts such as crankshafts, camshafts, rocker arm shafts or balancer shafts in the engine block or in the connecting rods. The mechanical stress in internal combustion engines is extremely high. Our bearings have therefore to meet a number of quality charac te ristics: they have to be fatigue-resis ting, adaptable, highly loadable and wear and corrosion resistant. In cooperation with engine manufacturers, we develop and test the bearings for every single engine type. Ongoing basic research and further developments of materials and production techno logies ensure economically and technically optimized products of highest quality. Materials and production methods Material development is extremely important in order that bearings can meet the high demands. Thanks to years of experience and developments, <strong>MAHLE</strong> disposes over a large number of bearing alloys such as aluminum and bronze alloys. Depending on the application, our bearings consist of a high-strength steel backing that is coated with different bearing metals. With regard to their applications, the bearing materials are chosen in such a way that their properties compliment one another optimally. During the production process, we use different coating methods that depend, for instance, on the relative bearing loads. We offer you a comprehensive range of bearings, available under <strong>MAHLE</strong> Original and – in Europe – Perfect Circle. Our product range comprises bearing shells and thrust washers in a diameter range from 27 to 140 mm as well as bushings with diameters from 6 to 105 mm. Types Sputtering Coating method that works on the principle of cathode sputtering, in which atoms are knocked- out from a metal cathode due to the impacting ions from a gas discharge proc ess. The resulting atomized metal condenses on the bearing surface of the bearing shell as a uni form layer. Solid bearings Solid bearings are made completely from special bearing metal that consist of special alloys. Two-material bearings Two-material bearings are used for low to medium loads in petrol and naturally aspirated diesel engines in passenger cars. They consist of a steel backing, an intermediate layer and a layer of bearing metal. Mainly aluminum alloys are used as bearing metal. Three-material bearings Three-material composite bearings are mainly used in engines under heavier loads. They consist of a steel backing, a bearing layer, a barrier layer and the sliding layer. Sputter bearings are special three-material bearings with signif i- cantly increased hardness and wearresistance due to a special production method (sputtering). Sputter bearings are therefore ideal for supercharged engines with intercooling and can now also be found increasingly in passenger car diesel engines. 13
Page 1 and 2: ENGINE COMPONENTS PROGRAM PRODUCT I
Page 3 and 4: About us In the beginning there was
Page 5 and 6: Pistons Our pistons have to put up
Page 7 and 8: Pistons Pistons with cooled ring ca
Page 9 and 10: Piston rings In modern engines, and
Page 11: Cylinder liners The steadily rising
Page 15 and 16: Valve train components Not many com
Page 17 and 18: Sales and service The best engine c
Page 19 and 20: , SE uttgart, DE Krotoszyn, PL Izmi

MAHLE Group

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