PIVOT SYSTEM OF RAILWAY VEHICLE Russian patent published in 2010 - IPC B61F5/00 

FIELD: transport.

SUBSTANCE: invention relates to railway transport. Proposed system of railway vehicle coupling bogie with bearing frame comprises pivot and thrust bearing in contact along bearing and thrust surfaces and recesses filled with solid or cup grease. Recesses are arranged on bearing and thrust surfaces of the pivot and thrust bearing. Recess depth makes at least tolerable wear along normal, while angle formed by adjacent recesses edges in radial direction does not exceed bogie turn angle. Note here that ratio of bearing and thrust surfaces to appropriate total area of recesses located thereon satisfies the condition σ = F/A-A1 ≤ [σ], where σ, [σ] makes rated and tolerable strains, F is normal force; A, A₁ are surface are and total area of recesses thereon, respectively.

EFFECT: longer life, reduced wear of bearing and thrust surfaces.

3 cl, 4 dwg