BS EN 4613:2021 pdf free download – Aerospace series – Spherical plain bearing in corrosion resisting steel with self-lubricating liner, narrow series – Dimensions and loads – Inch series.
This document specifies the characteristics of a bearing, spherical plain in corrosion resisting steel with self-lubricating liner, narrow series for aerospace applications.
These bearings are not intended for use of moving parts especially for control mechanisms and operating systems. They shall be used in the temperature range —55 °C to 163 °C.
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 2030, Aerospace series — Steel Xl O5CrMol 7(13544) — Hardened and tempered — Bars — De  150mm
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 2755, Aerospace series — Bearing, spherical, plain in corrosion resisting steel with self-lubricating liner — Elevated load at ambient temperature — Technical specification
EN 3161, Aerospace series — Steel FE-PM3801 (X5CrN1CuI 7-4) — Air melted, solution treated and precipitation treated, bar a or D  200 mm, Rm  930 MPa
ISO 1132-1, Rolling bearings — Tolerances — Part 1: Terms and definitions
ISO 8075, Aerospace — Surface treatment of hardenable stainless steel parts
TR 4475, Bearings and mechanical transmissions for airframe applications — Vocabulary’
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 http://www.iso.org/obp
• TEC Electropedia: available at https://www.electropedia.org/
Symbols of limit deviations are in accordance with definitions of ISO 1132-1.
a = maximum angle of tilt of the inner ring with respect to the outer ring, with the spherical raceway of the outer ring being completely in contact with the inner ring (see Figure 1 and Figure 2);
Ca = permissible static axial load;
C = permissible static radial load;
8 Quality management systems
The manufacttirers 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 II not otherwise agreed between customer and supplier.