The influence of the reliability of wheelsets of innovative wagons in operation on the need for new wheels

The article considers one of the most important wagon units - wheelsets. An analysis was made growing number uncoupled wagons Russian railways for unplanned repairs and it revealed that common reasons this are faulty condition wheelsets axle boxes. It determined factors influencing nature malfunctions inappropriate quality repair bogies, admission to operation secondary wheels with a rib thickness less than 26 mm. One measures taken is lubrication rails sleepers. introduction innovative wear-resistant may also have an impact on reducing growth in requiring repair. features newly produced higher load increased turnaround time considered. To assess increase share need wheels, reliability indicators gondola hopper were Reliability evaluated by probability nonfailure operation, failure rate parameter between failures. assessment carried out each type identified malfunctions. thin shelled tread. Results calculations showed dependences faults from run uncoupling defined. studied determined. has been average mileage before malfunction occurs 3.5 times greater traditional wagons.