FIELD: transport engineering; city railless electric vehicles.
SUBSTANCE: end face and inner sides of cheek are provided with bevels. End face surface is provided with slot. Bevels of end face surface are formed by faces of trihedral pyramid. Bevels and faces are rounded off both, in longitudinal and cross directions. Cheek is made of composite powder iron-based material with additions of copper, nickel, zinc and phosphorus at definite ratio of components.
EFFECT: improved economy characteristics.
3 cl, 3 dwg
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