FRICTION BEARING, PROCEDURE FOR ITS FABRICATION AND IMPLEMENTATION OF THIS FRICTION BEARING Russian patent published in 2011 - IPC F16C13/02 F16C33/02 F16C33/14 C23C4/08 C23C10/28 B23K26/04 

FIELD: machine building.

SUBSTANCE: friction bearing consists of at least one bearing part (25) made out of iron containing basic material. Further, friction bearing consists of insertion (24) on its working surface equipped with coating (26) made in form of a built-up layer and connected to basic material by means of a connecting zone containing FeSn₂. Thickness of the connecting zone containing FeSn₂ is maximum 10 mcm. It corresponds to depth of diffusion of the Sn layer built-up on iron containing basic material, preferably the layer of babbit. The distinguished feature of the procedure for fabrication of the above said bearing is like follows: during built-up of at least the first layer of coating (26), transfer of power to coated surface and to supplied covering material is controlled so, that only covering material is completely melted, while iron containing basic material is in completely solid state. The claimed here friction bearing is used in metallurgy, particularly for support of rollers in a rolling mill for metal and non-metal strips or profiles.

EFFECT: increased service life, high reliability due to elimination of negative effect to plasticity of bearing; also, simple procedure for bearing fabrication.

31 cl, 3 dwg