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BS 8535:2011:2013 Edition

BS 8535:2011:2013 Edition

$167.15

Railway applications. Wheelsets and bogies. Powered and non-powered axles with inboard bearings. Design method

Published By Publication Date Number of Pages
BSI 2013 44
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This British Standard specifies a design method for powered and non-powered axles with inboard bearings for railway applications. This standard:

  1. specifies the forces and moments to be taken into account with reference to masses, traction and braking conditions;

  2. specifies the stress calculation method for axles with inboard axle journals;

  3. specifies the maximum permissible stresses to be assumed in calculations for steel grades EA1N, EA1T and EA4T as defined in BS EN 13261 and steel grades A1N and A1T as specified in BS 5892-1;

  4. specifies a method for determining the diameters for the various sections of the axle. It also gives recommendations for the preferred shapes and transitions to ensure adequate service performance.

This standard is applicable to:

  1. solid and hollow powered axles for railway rolling stock;

  2. solid and hollow non-powered axles of motor bogies;

  3. solid and hollow non-powered axles of locomotives;

  4. axles defined in BS EN 13261 and in BS 5892-1;

  5. UK standard gauge.

This standard is applicable to axles fitted to rolling stock intended to run under normal UK mainline conditions. Before using this standard, if there is any doubt as to whether the railway operating conditions are normal, it is necessary to determine whether an additional design factor has to be applied to the maximum permissible stresses. The calculation of wheelsets for special applications (e.g. tamping/lining/levelling machines) may be made according to this standard only for the load cases of free-running and running in train formation. This standard does not apply to workload cases. They are calculated separately.

PDF Catalog

PDF Pages PDF Title
11 Figure 1 Influence of masses in motion
12 Table 1 Masses to be taken into account for the main types of rolling stock
13 Figure 2 Load balance for load case 1
14 Figure 3 Forces for calculating bending moment Mx
15 Table 2 Calculation of Mx for each axle zone and general outline of variations in Mx along the axle
16 Figure 4 Load balance for load case 2
17 Figure 5 Moments generated by braking
20 Table 3 Values of components , , and  for different methods of braking
24 Figure 6 Diameters of solid and hollow axles
25 Figure 7 Stress concentration factor K as a function of D/d and r/d
26 Figure 8 Stress concentration factor K as a function of D/d and r/d (groove bottom)
27 Figure 9 Wheel, brake disc, pinion and bearing ring press-fitted onto a seat
28 Figure 10 Journal showing bearing overhang
Figure 11 Wheel seat showing wheel hub overhang
29 Figure 12 Transition between bearing seat and wheel seat
30 Figure 13 Transition between axle body and bearing, brake disc or gear seat
31 Table 4 Maximum permissible stresses for axles in steel grades EA1N and EA1T
Table 5 Maximum permissible stresses for axles in steel grade EA4T
BS 8535:2011
$167.15