BS EN 1337-7:2004
Current
The latest, up-to-date edition.
Structural bearings Spherical and cylindrical PTFE bearings
Hardcopy , PDF
English
29-12-2006
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions, symbols and abbreviations
4 Requirements
5 Material properties
6 Design requirements
7 Manufacturing, assembly and tolerances
8 Conformity evaluation
Annex A (informative) Method for calculating the
eccentricities in spherical and cylindrical
PTFE bearings
Annex B (informative) Reduced area for curved
sliding surfaces
Annex ZA (informative) Provisions for the CE marking
of cylindrical and spherical PTFE bearings
(with or without flat sliding elements) under
the EU Construction Products Directive
Specifies the requirements for the design and manufacture of spherical and cylindrical PTFE bearings.
| Committee |
B/522
|
| DevelopmentNote |
Supersedes 96/108510 DC. (09/2005) Together with BS EN 1337-1, BS EN 1337-2, BS EN 1337-3, BS EN 1337-4, BS EN 1337-5, BS EN 1337-6, BS EN 1337-8, BS EN 1337-9, BS EN 1337-10 and BS EN 1337-11, supersedes BS 5400-9.1(1983) and BS 5400-9.2(1983). (10/2009)
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This European Standard deals with the requirements for the design and manufacture of spherical and cylindrical PTFE bearings. The requirements and properties of the curved sliding surfaces are included in EN 1337-2. Spherical and cylindrical bearings with an included angle 2 q > 60° and 2 q > 75° respectively are beyond the scope of this European Standard. (see Figure 6). For the purpose of controlling the degree of freedom the bearings may be combined with flat sliding elements and guides according to EN 1337-2:2004 and restraining rings as per 6.3.4. Cylindrical bearings are susceptible to unexpected moments about the transverse axis of the cylindrical surface. Additional limitation of application to be taken into consideration is given in clause 1 of EN 1337-2:2004.
| Standards | Relationship |
| NS EN 1337-7 : 2ED 2004 | Identical |
| NF EN 1337-7 : 2004 | Identical |
| DIN EN 1337-7:2004-08 | Identical |
| NEN EN 1337-7 : 2004 | Identical |
| NBN EN 1337-7 : 2004 | Identical |
| I.S. EN 1337-7:2004 | Identical |
| EN 1337-7:2004 | Identical |
| UNE-EN 1337-7:2004 | Identical |
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