%0 Journal Article %T Improvement of gearbox housings for unequipped electric rolling stock %A Oparina, E.V. %A Kolotay, D.A. %K gearbox housing, lubricants, design solutions %J Bulletin of scientific research results %D 2026 %N 2026 %P 10 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"