| 摘要 |
FIELD: machine building. ^ SUBSTANCE: roller bearing contains internal and external rings, between which cylindrical rollers are placed. On external ring by slide fit installed is additional intermediate ring with radial holes, three parts of which are filled with low-melting-point metal and one part with grease. ^ EFFECT: increase of train movement safety due to prevention of fall of necks of wheel pair axles in case of jamming of rollers of axlebox unit bearing. ^ 1 dwg |
