1 Scope
This British Standard specifies requirements for the assembly of powered and non-powered
wheelsets with inboard bearings comprising elements conforming to the following standards.
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a)
BS 8535
for axle design.
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b)
BS EN 13261
or BS 5892‑1 for axles.
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c)
BS EN 13262
or BS 5892‑3 for wheels.
NOTE Some characteristics are specified as a function of Category 1 or of Category 2.
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•
Category 1 is applicable for wheelsets whose operating speed is to exceed 200 km/h.
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•
Category 2 is applicable for wheelsets whose operating speed is not to exceed 200 km/h,
and comprises two sub-categories:
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•
Category 2a is applicable when the operating speed is to be up to and including 120 km/h;
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•
Category 2b is applicable when the operating speed is to exceed 120 km/h, but is not
to exceed 200 km/h.