BS EN 13260:2020 pdf free

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BS EN 13260:2020 pdf free.Railway applications一Wheelsets and bogies – Wheelsets一Product requirements.
BS EN 13260 Before assembly, the various components of the wheelset must fulfil the geometric requirements of the specific documents that define them. In particular, the axle and wheels must be in the “ready to assemble”state defined in EN 13262 for wheels and EN 13261 for axles.The components of the wheelset can be shrink-fitted or press-fitted to the axle.The wheels should be fitted with an oil injection hole.The interference fits to be used must be defined by the technical specification, depending on the characteristics of the material used for this element and the forces and moments to be transmitted through the fit. This interference must be defined according to the geometric tolerances of the wheel seats whose interference values are given in 4.1.2. In the case of shrink-fitting, the whole wheel should be heated and its temperature should not exceed 250°C.If a different heating method is used, proof must be provided that it has had no influence on the characteristics of the wheel, as defined in EN 13262.If another fitting method is used, it must be defined in the technical specification. It must at least demonstrate that the characteristics of the axle and wheel as defined in EN 13261 and EN 13262 are not affected by the fitting. Then the mechanical resistance of the assembly (see 4.2.1) must be demonstrated and the traceability documents for each fitting must be defined to give the same type of information as that defined in E.6. The static imbalance of the two wheels on each wheelset must be within the same diametric plane and on the same side of the axle. The static imbalance of the brake discs must be in the same plane as the wheels but on the opposite side of the axle.For pressfitting, the force-displacement curve ensures that the fitting has not damaged the contact surfaces and that the specified interference is effective. BS EN 13260 pdf download.

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