FIELD: railway transport; prevention of axial displacement of parts. SUBSTANCE: axle-box unit with antifriction bearings 1, 2 is made with end face attachment of bearings on axle neck by means of half-rings 6, 7 placed groove on neck between thrust ring 4 and axle bead. Springy ring 8 with split installed between half-rings and washer 11 with conical flange provides slackless fastening of bearings on axle neck. EFFECT: enlarged operating capabilities. 1 dwg
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