EN 6056-2019 pdf download.Aerospace series – Rod-end with bearing per EN 4614 with self lubricating liner in corrosion resisting steel with external threaded shank – Dimensions and loads – Inch series.
This EN 6056 specifies the characteristics of adjustable rod-ends consisting of:
— a self-aligning ball bearing with self-lubricating liner (EN 4614);
— a rod-end with threaded shank with an optional longitudinal groove for locking purposes.
They are intended for use in fixed or moving parts of the aircraft structure and their control
mechanisms.
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 2068. Aerospace series — Rod ends with self-lubricating, self-aligning 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 2424. Aerospace series — Marking of aerospace products
EN 4614. Aerospace series — Spherical plain bearing In corrosion resisting steel with self-lubricating liner, wide series — Dimensions and loads — Inch series
ISO 1132-1. Rolling bearings — Tolerances — Part 1: Terms and definitions
ISO 3161, Aerospace — UN) threads — General requirements and limit dimensions
ISO 3353-1. Aerospace — Lead and runout threads — Part 1: Rolled external threads
ISO 3353-2. Aerospace — Lead and runout threads — Part 2: Internal threads
150 8074, Aerospace — Surface treatment of austenitic stainless steel parts
NAS 559. Lock-rod end (key type)1
SAE AMS 5643, Steel, corrosion resistant, bars wire, forgings, tubing and rings I 6Cr-4.ONi-0.30(Cb. Ta)-4.OCu solution heat treated, precipitation hardenable.
ISO and IEC maintain terrninological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http://wwwiso.org/obp IEC Electropedia: available at http://www.electropedia.org/
Symbols of limit deviations are in accordance with definitions of ISO 1132-1.
a maximum angle of tilt of the outer ring with respect to the inner ring. with the spherical surface of the outer ring being completely in contact with the inner ring
C, push out load
C permissible static radial load
4imp single plane mean bore diameter deviation
41s deviation of a single bore diameter
fatigue load
4 Requirements
4.1 Configuration, dimensions, tolerances and mass
Configuration, dimensions, tolerances and mass shall be according to Figure 1 and Table 1
Table 1: Dimensions and tolerances are expressed in millimetres (inches).
Figure 1: Dimensions and tolerances for Ra max. are expressed in pm (pin).
Values apply after surface treatment.
4.2 Surface roughness
Surface roughness shall be according to Figure 1.
Surface roughness is measured before surface treatment.
4.5 Material
Liner: PTFE liner (see product standard EN 4614).
Inner ring: see product standard EN 4614.
Outer ring: see product standard EN 4614.
Rod-end body: see AMS 5643, hardness 35 ≤ HRC < 42.
4.6 Surface treatment
Surface treatment shall be as defined in chapter 5 (designation) with following codes:
— rod-end body:
— code T: passivated according to ISO 8074;
— code P: cadmium plating and chrornating according to EN 2133, 10 Itm to 20 lIm (400 ain to 800 )tin);
— except: threads, 5 lIm to 15 lIm (200 tin to 600 itin);
— bearing: see EN 4614, code T.
NOTE If necessary, the code 19005 shall be placed between the description block and the identity block
6 Marking
Marking shall be according to EN 2424. style A.
7 Technical specification
Technical specification shall be according to EN 2068.
8 Quality management system
The manufacturers operations shall be an approved production organisation for aerospace products and shall demonstrate that It has implemented and is able to maintain a quality management system (e.g. according to EN 9100 or an equivalent aerospace accepted and established quality management system)
The qualification procedure for aerospace standard products (e.g. according to EN 9133 or an equivalent aerospace accepted and established qualification procedure) shall be used and documented according to the specified tests If not otherwise agreed between customer and supplier.
A.1 Standard rod-end fatigue spectrum
See Figure A.1.
A.2 Method
The loading shall be tension tension with the maximum load equal to the fatigue load given on applicable EN standard and with the minimum load equal to 10% of the fatigue load see typical fatigue spectrum in Figure Al.
Loads shall be maintained within ±2% and testing speed shall not exceed 50 Hz. Rod-ends shall be capable of withstanding 2 million cycles.EN 6056-2019 pdf download.