FRICTION ARTICLE Russian patent published in 2013 - IPC F16D65/92 F16D69/02 

FIELD: machine building.

SUBSTANCE: friction article comprises friction element fixed at metallic carcass provided with working surface and side surfaces, one being perpendicular and another one not perpendicular to working surface. Friction element working surface features roughness greater than that of side surface perpendicular to working surface and smaller than that of side surface not perpendicular to working surface. Said side surface not perpendicular to working surface is furnished with grooves.

EFFECT: reduced possibility of strain concentration at article surface sections, crack formation and rupture of separate surface sections in initial period of operation.

2 dwg