FEATURES OF TESTING COGGED WHEELS OF TRACTION GEARS OF LOCOMOTIVES AND MULTIPLE ROLLING STOCK (REVIEW)

The paper clearly shows some tests of cogged wheels and gears of traction gearboxes of locomotive wheel-motor units and multiple rolling stock for compliance with state standards. The test procedure and control methods for compliance with mechanical properties, hardness, surface quality, micro- and macrostructure are described. The features of magnetic powder technology and capillary non-destructive testing methods for detecting cracks in cogged wheels and bearings are considered. The measuring tools and test equipment, including auxiliary materials used in flaw detection, are given.