BS/EN 6096-2019 pdf download.Aerospace series – Bearing, spherical plain with selflubricating liner, extra wide inner ring in corrosion resisting steel – Dimensions and loads – Inch series.
This BS/EN 6096 specifies general characteristics of spherical plain bearings in corrosion
resisting steel with self-lubricating liner, extra wide inner ring, inch series.
They are intended for use in fixed or moving parts of the aircraft structure and 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 2030, Aerospace series — Steel Xl O5CrMol 7(1.3544) — Hardened and tempered — Bars — De 5150mm
EN 2133, Aerospace series — Cadmium plating of steels with specified tensile strength 51 450 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 (X5CrN1Cu 17-4) — Air melted, solution treated and precipitation treated, bar a or D ≤200 mm, Rm 2’ 930 MPU
ISO 1132-1. Rolling bearings — Tolerances — Part 1: Terms and definitions
ISO 8075, Aerospace — Surface treatment of hardenable stainless steel parts
TR 4475, Aerospace series Bearings and mechanical transmissions for airframe applications — Vocabula,y’
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.orJobp
— 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;
Ca permissible static axial load;
C permissible static radial load;
C25 permissible dynamic radial load by 25 000 cycles;
4Imp single plane mean bore diameter deviation:
single plane mean outside diameter deviation;
4ds deviation of a single bore diameter;
A deviation of a single outside diameter.
4 Requirements
4.1 Configuration, dimensions, tolerances and mass
Configuration, dimensions, tolerances and mass shall be according to Figure 1, Figure 2 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 and Figure 2.
Values in micrometer (micro inches), apply prior to surface treatment.
4.3 Material
Inner ring: see EN 2030; hardness 55 ≤ I-IRC ≤ 62.
Outer ring: see EN 3161, hardness 28 ≤ HRC ≤ 38; before swaging.
Liner: self-lubricating liner per EN 2755.
4.4 Surface treatment
Surface treatment shall be as defined in chapter 5 (designation) with following codes:
— code T: surface treatment according to ISO 8075 for inner ring before swaging; outer ring: no treatment.
— code P: surface treatment according to ISO 8075 for inner ring before swaging; cadmium plating of outer ring according to EN 2133, 5 pm to 8 pm (200 pin to 300 pin).
4.5 Swaging groove
Swaging groove shall be described In chapter 5 (designation) with following codes:
Without swaging groove code S:
Surface treatment according to ISO 8075 for inner ring before swaging. Cadmium plating of outer ring:
5 pm to 8 pm (200 pin to 300 pin) according to EN 2133 (cylindrical surface area, chamfers and both end surfaces at manufacture’s option), followed by chromating.
With swaging groove code R:
Surface treatment according to ISO 8075 for inner ring before swaging. Cadmium plating of outer ring:
5 pm to 8 pm (200 pin to 300 pin) according to EN 2133 (cylindrical surface area, broken angles and radii, respectively, as well as both end surfaces up to the swaging grooves), followed by chromating.
4.6 Liner technology
Liner technology shall be as defined in chapter 5 (designation) with following codes:
— code A : bonded liner technology;BS/EN 6096-2019 pdf download.