SIST EN 4157:2024

SLOVENSKI STANDARD
01-oktober-2024
Aeronavtika - Konec palice s samonastavljivim dvorednim krogličnim ležajem in
navojnim steblom iz jekla - Dimenzije in obremenitve, palčne mere
Aerospace series - Rod end, with self-aligning double row ball bearing and threaded
shank in steel - Dimensions and loads, Inch series
Luft- und Raumfahrt - Ösenköpfe mit zweireihigem Pendelkugellager und Gewindeschaft
aus Stahl - Maße und Belastungen; Inch-Reihe
Série aérospatiale - Embout à roulement à rotule sur deux rangées de billes et tige
filetée en acier - Dimensions et charges, série en inches
Ta slovenski standard je istoveten z: EN 4157:2024
ICS:
49.035 Sestavni deli za letalsko in Components for aerospace
vesoljsko gradnjo construction
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 4157
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2024
EUROPÄISCHE NORM
ICS 49.035
English Version
Aerospace series - Rod end, with self-aligning double row
ball bearing and threaded shank in steel - Dimensions and
loads, Inch series
Série aérospatiale - Embout à roulement à rotule sur Luft- und Raumfahrt - Ösenköpfe mit zweireihigem
deux rangées de billes et tige filetée en acier - Pendelkugellager und Gewindeschaft aus Stahl - Maße
Dimensions et charges, série en inches und Belastungen; Inch-Reihe
This European Standard was approved by CEN on 12 May 2024.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4157:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms, definitions and symbols . 4
3.1 Terms and definitions . 4
3.2 Symbols . 5
4 Requirements . 5
4.1 Dimensions, tolerances and masses . 5
4.2 Surface roughness . 5
4.3 Materials . 5
4.4 Surface treatment . 5
4.5 Loads, starting torques and clearances . 10
4.6 Retention of seals or shields . 11
4.7 Temperature range and lubricant . 11
5 Designation . 11
6 Marking . 12
7 Technical specification . 12
8 Quality management systems . 12
Bibliography . 13

European foreword
This document (EN 4157:2024) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2025, and conflicting national standards shall
be withdrawn at the latest by January 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
1 Scope
This document specifies the characteristics of adjustable rod-ends with self-aligning double row ball
bearing and threaded shank in steel.
They consist of:
— a rod-end comprising:
— either seals or shields;
— an optional longitudinal groove for locking purpose;
— an inner ring with balls.
These rod-ends are intended for use with flight control rods or rods for aerospace structures.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2031, Aerospace series — Steel 102Cr6 (1.2067) — Hardened and tempered — Bars
EN 2067:1996, Aerospace series — Rod ends with self-aligning ball bearings — Technical specification
EN 2133, Aerospace series — Cadmium plating of steels with specified tensile strength ≤ 1 450 MPa,
copper, copper alloys and nickel alloys
EN 2135, Aerospace series — Steel FE-PL61 — Carburized, hardened and tempered — Bar —
De ≤ 40 mm
EN 2424, Aerospace series — Marking of aerospace products
ISO 3161, Aerospace — UNJ threads — General requirements and limit dimensions
ISO 3353-1, Aerospace — Lead and runout threads — Part 1: Rolled external threads
TR 4475 , Bearings and mechanical transmissions for airframe applications — Vocabulary
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in
...