BS 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 European standard 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
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 — UNJ 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
ISO 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 16Cr-4.0Ni-0.30(Cb+Ta)-4.0Cu solution heat treated, precipitation hardenable
TR 4475, Bearings and mechanical transmissions for airframe applications — Vocabulary 2
3 Terms, definitions and symbols
For the purposes of this document, the terms and definitions given in TR 4475 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
ISO Online browsing platform: available at
IEC Electropedia: available at
Symbols of limit deviations are in accordance with definitions of ISO 1132-1.
α 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 p push out load
C s permissible static radial load
∆ dmp single plane mean bore diameter deviation
∆ ds deviation of a single bore diameter
C f 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 μm (μin).
Values apply after surface treatment.
4.2 Surface roughness
Surface roughness shall be according to Figure 1.
Surface roughness is measured before surface treatment.BS 6056 pdf download.