BS EN 4539-003:2010 pdf download.Aerospace series – Bearings, spherical plain, in corrosion resisting steel with self- lubricating liner elevated load under low oscillations – Wide series – Dimensions and loads Part 003: Inch series with low friction coefficient.
This standard specifies the characteristics of bearings, spherical plain in corrosion resisting steel with self-lubricating liner, elevated load under low oscillations, with low friction coefficient, wide series, inch series.
They shall be used in the temperature range — 54 °C to 120 °C.
2 Normative references
The following referenced documents are indispensable for the application 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. Steel FE-PM43 — Hardened and tempered — Bars 0 < 150 mm — Aerospace series 1)
EN 2133, Aerospace series — Cadmium plating of steels with specified tensile strength < 1 450 MPa, copper, capper alloys and nickel alloys
EN 2424:2008, Aerospace series — Marking of aerospace products
EN 3161. Aerospace series — Steel FE-PM3801 (X5CrN1CuI7-4) — Afr melted — Solution treated and
precipitation treated — Bar — a or D < 200 mm — Rm  930 MPa
EN 4540. Aerospace series — Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner — Elevated load under low oscillations — Technical specification 2)
ISO 1132-1:2000. Rolling bearings — Tolerances — Part 1: Terms and definitions
TR 4475, Aerospace series — Bearings and mechanical transmissions for airframe applications — Vocabulaiy 3) AMS-QQ-C-320, Chromium Plating (Electrodeposited) 4)
3 Symbols and definitions
For the purposes of this document, the symbols and definitions given in ISO 1132-1:2000 and the following apply.
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.
Ca Permissible static axial load.
— Permissible static radial load.
4 Required characteristics
4.1 Configuration, dimensions, tolerances and mass
See Figures 1 and 2 and Table 1. The dimensions are expressed in millimetres and apply after surface treatment.
4.2 Surface roughness
See Figures 1 and 2. The values are expressed in micrometres and apply before surface treatment.BS EN 4539-003 pdf download.