Trailing stock: wheels and wheelsets. Conditions concerning the use of wheels of various diameters
NORMA vydána dne 1.5.2004
Označení normy: UIC 510-2-4ed.
Datum vydání normy: 1.5.2004
Počet stran: 75
Přibližná hmotnost: 225 g (0.50 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy UIC
Summary:
ry
This leaflet contains the conditions
relating to the design and maintenance of wheels and wheelsets for coaches and
wagons used on international services. It covers wheel diameters from 330 to
1 000 mm, and indicates the permissible axle loads from the standpoint of stresses
of the metal used for the wheel and the rail.
It also stipulates the minimum wheel flange height according to wheel diameter:
for wheel diameters between 760 and 1 000 mm: h = 28 mm,
for wheel diameters between 630 and 760 mm: h = 30 mm or 32 mm (h = 30 mm is preferable for financial reasons),
for wheel diameters between 330 and 630 mm: h = 32 mm.
To guarantee safe running when passing
over fixed noses with a minimum tangent of 1/9 in plain obtuse crossings and
obtuse crossings with slips in curves with a 450 m radius (which, from the point
of view of running, are the most unfavourable points in the track), the leaflet
also deals with the dimensions to be observed during construction, when laying
the track, and for the maintenance of these crossings. In addition, it gives
the permissible value, in service, of the angle of attack of the axle and the
lateral force acting on the latter, valid for the range of wheel diameters from
330 to 840 mm. For wheels with diameters between 840 and 1 000 mm, the safety
of which was warranted by current practice, no condition was laid down in this
connection.
The conditions of this leaflet are valid for a nominal track gauge of 1 435 mm and cannot be readily transposed to apply to other track gauges.
ERRI document DG4
contains an overview of standardised subgroups and component parts.