GB/T 4606-1984
AbolishedRoad vehicles--50 semi-trailer fifth wheel coupling pin--Basic and mounting/interchangeability dimensions
道路车辆 半挂车鞍座50号牵引销主要尺寸和安装、互换性尺寸
Application Summary AI generated
This standard specifies the basic dimensions and mounting/interchangeability dimensions for the 50 semi-trailer fifth wheel coupling pin used in road vehicles. It is applied in the design, manufacturing, and quality inspection of tractor-trailer combinations to ensure the mechanical coupling pin fits correctly with the fifth wheel on the tractor. The standard facilitates interchangeability and safety in commercial trucking and heavy transport applications.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.