JIS E 4207:2019规定了机车车辆转向架（不包括指定轨道车辆）中用于转向架框架和梁的钢部件（包括非簧载部件和车体安装部件）常见的强度设计条件。本标准不适用于使用橡胶轮胎等的指定轨道车辆（如无轨电车、单轨车、改装个人快速运输车、磁力支撑车辆等）的转向架框架；然而，本标准可适用于这些车辆转向架构架所用材料的许用应力。

JIS E 4207:2019 specifies the conditions of strength design that are common to steel components used for bogie frames and beams comprising main strength members (excluding unsprung components and carbody mounting components), among bogies used for a rolling stock (excluding that for specified railway cars).This Standard does not apply to the bogie frames used for specified railway cars (such as a trolleybus, a monorail car, a modified-personal-rapid-transit car, a magnetically supported vehicle, etc.), which use e.g. a rubber tire; however, this Standard may apply to the allowable stress of material used for bogie frames of these cars.