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BS EN 12082:2017+A1:2021

BS EN 12082:2017+A1:2021

$198.66

Railway applications. Axleboxes. Performance testing

Published By Publication Date Number of Pages
BSI 2021 54
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This European Standard specifies the principles and methods for a rig performance test of the system of axlebox rolling bearing(s), housing, seal(s) and grease. Test parameters and minimum performance requirements for vehicles in operation on main lines are specified. Different test parameters and performance requirements may be selected for vehicles in operation on other networks (e.g. urban rail). This standard is historically developed for outboard applications but can be used for vehicles with other bearing arrangements (e.g.: inboard application or single wheels). It gives some possible examples where a “sequenced performance test” addresses the broad range of different service conditions within a specific application or vehicle platform into account. It describes in detail the water tightness test and basic principles and minimum requirements for a field test. This European Standard only applies to axleboxes equipped with rolling bearings and greases according to EN 12080 and EN 12081.

PDF Catalog

PDF Pages PDF Title
2 undefined
10 1 Scope
2 Normative references
3 Terms and definitions
12 4 Symbols and abbreviations
14 5 Test specification
5.1 General requirements
5.2 Test specification content
5.2.1 General
5.2.2 Rig tests
15 5.2.3 Field test
6 Water tightness test
16 7 Rig performance test
7.1 General
7.2 Test execution
7.2.1 Test rig
17 7.2.2 Test parameters
7.2.2.1 General
18 7.2.2.2 Rotational test speed
7.2.2.3 Radial and axial forces
7.2.2.4 Air cooling
7.3 Carrying out the test
7.3.1 Pre-test
19 7.3.2 Performance test
7.4 Acceptance criteria
7.4.1 Results obtained during the test
20 7.4.2 Results obtained after the test
7.5 Performance test report
21 8 Field test
8.1 General
8.2 Carrying out the test
22 8.3 Test parameters
8.4 Acceptance criteria
8.4.1 Results to be obtained at intermediate inspections during the test
8.4.2 Results to be obtained after the test
8.5 Field test report
24 Annex A (normative)Rig performance test
A.1 Schematic examples of test rigs
25 A.2 Temperature measurements
27 A.3 Grease sampling zones
28 A.4 Definition of forces
A.5 Definition of test cycles
A.5.1 Speed Classes and cumulative distances for testing
29 A.5.2 Conditions for sequenced tests
A.5.3 Particular conditions for similar rolling bearing(s), grease or box housing
30 A.6 Graphical presentation of test cycles
31 A.7 Temperature criteria
32 A.8 Mechanical and physico-chemical acceptance criteria
A.8.1 Mechanical criteria
33 A.8.2 Physico-chemical criteria
35 A.9 Reference to existing approval results
A.9.1 General
A.9.2 Preconditions for applicability of existing results
38 Annex B (informative)Sequenced performance tests
B.1 General
B.2 High Speed Train example
40 B.3 Passenger train example
41 B.4 Freight train example
43 B.5 Peri-urban train example
45 Annex C (normative)Water tightness test
C.1 General
C.2 Test conditions
46 C.3 Test procedure
C.4 Pass/fail criterion
C.5 Test report
47 C.6 Sketches
C.6.1 Classic application
48 C.6.2 Application with dynamic seals on both sides of the axlebox
49 Annex D (informative)Temperature evaluation examples
D.1 General
D.2 Nomenclature
D.3 Criterion A
50 D.4 Criterion B
D.5 Criterion C
51 D.6 Criterion D
D.7 Criterion E1
D.8 Criterion E2

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BS EN 12082:2017+A1:2021
$198.66