Abstract: The invention relates to the field of metallurgy, in particular to the methods for heat treatment of railway rolling stock parts, specifically railway rolling stock unit center plate. The center plate strengthening device contains a power coil and a sprayer, the power coil being implemented as turnable against the center plate central axis and containing a tube with spray cooling openings. The method for railway rolling stock unit center plate strengthening is performed by progressive induction hardening with simultaneous liquid cooling while rotating the center plate strengthening device 360° around the central axis where the center plate treated surfaces undergo induction heating, spray cooling immediately after the heating, and low-temperature volume tempering with a dwelling period.

Abstract: The invention relates to the field of heat treatment of metals and may be used for hardening the railway transport automatic coupler parts. The hardening method includes induction heating of the automatic coupler and its subsequent cooling. The induction heating is performed within the automatic coupler part working surface area. The heated surface is cooled by water fed through openings in the coil body.

Abstract: The invention relates to metal industry and more particularly to alloy for producing steel wheels, as well as to steel wheels made from such alloy for railway transport. The steel comprises the following components, in % wt.: from 0.45% wt. to 0.60% wt. of carbon, from 0.38% wt. to 0.50% wt. of silicon, from 0.80% wt. to 1.00% wt. of manganese, up to 0.15% % wt. of vanadium, from 0.80% wt. to 1.00% wt. of chromium, up to 0.02% wt. of phosphorus, up to 0.015% wt. of sulfur, up to 0.3% wt. of copper, up to 0.25% wt. of nickel, up to 0.04% wt. of aluminum, a balance of iron. The claimed steel alloy for use in producing railway wheels, either by metal working process or by casting methods, has improved mechanical and operational properties.

Abstract: A novel freight car truck bolster comprising a top member with a center bowl and support shelves for side bearers, a bottom member with bearing surfaces for swing suspension springing elements, going into diagonal tension members, side walls joining the top and bottom members, vertical longitudinal ribs located between the top and bottom members with their thickness increased in the center bowl area, pockets to install friction wedges. The bottom member has increased thickness in the transition areas of the bearing surfaces into the diagonal tension members, and the vertical ribs have thickness increased at the top of the center bowl area, the rounded transitions of the sloping walls into the bottom member bearing surfaces have a radius exceeding the radius of the rounded transitions of the vertical walls into the said bearing surfaces.

Abstract: A bolster for a freight railway car truck relates to structural elements of freight railway car trucks. Locator recesses (8.2) with bearing surfaces (8.3) and thrust flanges (8.4) are formed in the side walls of guiding pockets (8). Wear-resistant lateral guiding plates (9) are secured within locator recesses (8.2) on the bearing surfaces (8.3), and wear-resistant inserts (10) are secured on inclined bearing seats (8.5). The use of wear-resistant lateral guiding plates (9) and wear-resistant inserts (10) protects side bearing surfaces and inclined bearing seats of guiding pockets (8) engaging with friction wedges of the shock absorber from contact wear.

Abstract: A side bearer of a railcar truck is designed to limit reciprocal displacement of a truck and railcar under a frame. The side bearer includes a carrying body with a guiding opening wherein a bearing cup is mounted by applying a springing element. A thrust collar is implemented on a guiding wall in a groove. Upon off-loading the cup e.g., during dismantling of a truck from under a railcar, a thrust collar bears against a limiting face ensuring unreleasable connection of the side bearer. Indicator grooving is implemented on a working face and on a lateral wall of a carrying body, enabling visual control of a side bearer technical condition.