Roller bearing

Details Roller bearing Roller bearing

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 33/62 (2006.01) C22C 38/18 (2006.01) F16C 33/32 (2006.01) F16C 33/34 (2006.01) F16C 33/64 (2006.01)

Patent

CA 2583207

The invention relates to a roller bearing comprising at least one first roll partner which is made of a ceramic material, in addition at least one second roll partner which is made of steel having a martensite structure. According to the invention, at least one section of the surface of the second roll partner is in rolling contact with the first roll partner for a roll contact and the compression stresses are formed on the section below the surface of the second roll partner at least in a charge-free state.

L'invention concerne un palier à roulement qui comprend au moins un premier partenaire de roulement en matériau céramique, ainsi qu'au moins un deuxième partenaire de roulement en acier à structure martensitique. Selon l'invention, au moins un segment de la surface du deuxième partenaire de roulement sert à un contact à roulement avec le premier partenaire de roulement et, au moins dans un état sans charge, des contraintes résiduelles de compression sont générées au moins au niveau de ce segment sous la surface du deuxième partenaire de roulement.

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