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The wheelsets in some axle gage changing systems have to be relieved of loads during the gage changing process. This can be carried out by yoke type track rollers that support the entire weight of the railcar during the process.
Special yoke type track rollers are used here that are equipped with standard INA bearings. Radial needle roller and cage assemblies support the high radial loads. Thrust needle roller bearings, shaft washers and housing washers are used to support the axial forces on the outer ring of the yoke type track rollers.