FIELD: railway transport. SUBSTANCE: bogie CENTER plate unit is cylindrical cavity in over-spring beam with semirings fitted along cavity surface generatrix. Gasket made of plastic material with wear resistance coating at side to body pivot bearing is fitted on bottom of CENTER plate unit. Coating consists of separate segments separated by radial grooves of depth equal to coating thickness and width equal to 1-3 depths of grooves. EFFECT: reduced labour input in repairs, simplified repair operations, increased distance run between overhauls. 2 cl, 2 dwg
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