BS EN 2755-2009 pdf download.Aerospace series Bearings, spherical plain in corrosion resisting steel with self-lubricating liner Elevated load at ambient temperature Technical specification.
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 2064, Aerospace series — Bearings spherical plain in corrosion resisting steel with self-lubricating liner — Technical specification
EN 2584, Aerospace series — Bearings, spherical plain in corrosion resisting steel with self-lubricating liner — Narrow series — Elevated loads at ambient temperature — Dimensions and loads
EN 2585, Aerospace series — Bearings, spherical plain in corrosion resisting steel with self-lubricating liner — Wide series — Elevated load at ambient temperature — Dimensions and loads
EN 3048, Aerospace series — Bearings, spherical plain in corrosion resisting steel with self-lubricating liner — Light series — Elevated load at ambient temperature — Dimensions and loads
EN 4037, Aerospace series — Bearings, spherical plain in corrosion resisting steel with self-lubricating liner, reduced starting torque — Light series — Dimensions and loads 1
EN 4038, Aerospace series — Bearings, spherical plain in corrosion resisting steel with self-lubricating liner reduced starting torque — Normal narrow series — Dimensions and loads’
EN 4039, Aerospace series — Bearings, spherical plain in corrosion resisting steel with self-lubricating liner reduced starting torque — Normal wide series — Dimensions and loads
EN 4040, Aerospace series — Bearings, spherical plain in corrosion resisting steel with self-lubricating liner with wide inner ring — Elevated loads at ambient temperature — Dimensions and loads
EN 4613, Aerospace series — Spherical plain bearings in corrosion resisting steel with self-lubricating liner, narrow series — Dimensions and loads — inch series
EN 4614, Aerospace series — Spherical plain bearings in corrosion resisting steel with self-lubricating liner, wide series — Dimensions and loads — inch series’
EN 6096, Aerospace series — Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner, and extra wide inner ring — Dimensions and loads — Inch series
EN 9100, Aerospace series — Quality management systems — Requirements (based on ISO 9001:2000) and
Quality systems — Model for quality assurance in design. development, production. installation and servicing
(based on Iso 9001:1994)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in TR 4475 and the following apply.
spherical plain bearings with self-lubricating liner
spherical plain bearing consisting of two concentric rings between which is Interposed a self-lubricating liner which is bonded or moulded onto the spherical inner surface or the spherical outer surface
3.2 Surface discontinuities
3.2.1
score, scratch
open surface defect
3.2.2
lap
surface defect where particles of metal or sharp edges are folded over and then rolled or forged into the surface
3.2.3
seam
unwelded fold which appears as an open defect in the material
3.3
starting torque at without load
torque required to start the rotation of the inner with the outer ring held stationary
3.4 Permissible static loads
3.4.1
radial
Cs
static load corresponding to a permissible unit pressure multiplied by the effective projected area in the radial direction, the inner ring being able to take any position within the limits of the tilting angle indicated in the product standard
3.4.2
axial
Ca
static load corresponding to a permissible unit pressure multiplied by the effective projected area in the axial direction
3.5
dynamic radial
Ca5
load which may be withstood by a bearing submitted to an oscillatory movement for a defined number and frequency of oscillation cycles without the dimensional or other characteristics deviating from the values permitted by the technical specification of the product
NOTE One oscillating cycle includes an angular displacement of the Inner ring In relation to the outer ring from 0° to 250 then from 250 to — 25° and finally from – 25° to 0°.
3.6
adhesion of the liner
area where the adhesive bond is broken, or non existent, leaving a smooth and clean interface on the metallic surface
3.7
production batch
batch of products composed of elements which may come from more than one element batch but which are assembled in the same production series
4 Requirements characteristics, inspection and test method
See Table 1.BS EN 2755-2009 pdf download.