FRICTION PART IN LUBRICATING MEDIUM WORKING AT CONTACT PRESSURE EXCEEDING 200 MPa

摘要

FIELD: machine building. ^ SUBSTANCE: friction part in lubricating medium is designed for operation at contact pressure exceeding 200 MPa. Part surface is textured and before or after texturing it undergoes face-hardening treatment for reduction of part surface friction coefficient. The surface has periodic chain of micro-metre type cavities, the largest length of which amounts from 5 to 500 microns and period is less than half of width of contacting surface. ^ EFFECT: depth of the said cavities is less or equal to 3 microns that allows shifting to elastic-hydrodynamic lubrication mode. ^ 17 cl, 4 dwg, 3 ex