BS EN 4036-2006 pdf download.Rod ends, adjustable with self-aligning double row ball bearing and threaded shank in corrosion resisting steel, reduced internal radial clearance — Dimensions and loads.
This BS EN 4036 specifies the characteristics of adjustable rod ends with self-aligning double row ball bearing with reduced internal radial clearance and threaded shank in corrosion resisting steel, designed to withstand only slow rotations and oscillations under load.
They consist of:
— arodendcornprising:
— circumferential groove to identify location:
— either seals or shields;
— an optional longitudinal groove for locking purpose;
— an inner ring with balls.
These rod ends are intended for use with flight control rods or rods for aerospace structures.
They are intended to be used in the temperature range: – 54 C to 150 C.
However, being lubricated with the following greases:
— very high pressure grease, ester type (code A), operational range – 73 C to 121 °C or
— very high pressure grease, synthetic hydrocarbons, general purpose (code B), operational range – 54 C to 177 °C (see EN 2067),
their field of application when lubricated with code A grease is limited to 121 °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.
ISO 1132-1, Rolling bearings — Tolerances — Pan 1: Terms and definitions.
ISO 3353-1, Aemspace — Lead and mnout threads — Part 1: Rolled external threads.
ISO 5855-2, Aerospace — MJ threads — Part 2: Limit dimensions for bolts and nuts.
ISO 8074, Aerospace — Surface treatment of austenitic stainless steel parts.
EN 2226, Steel FE-PM43 — Hardened and tempered — Hand and die forgings D ≤ 150 mm — Aerospace
series. 1)
EN 2424, Aerospace senes — Marking of aerospace products.
EN 3490, Aerospace senes — Steel FE-PM3901 (X15CrNi17-3) — Air melted — Hardened and tempered — Bar for machining — 0,, ≤200 mm — 900 MPa ≤Rm ≤1 100 MPa. )
TR 3775, Aerospace senes — Bolts and pins — Materials. 4)
3 Terms and definitions
For the purposes ci this standard, the terms and definitions given in ISO 1132-1 apply,
4 Symbols and abbreviations
-r deviation of a single bore diameter
= single plane mean bore diameter deviation
permissible static radial load
F5 = permissible static axial load
5 Required characteristics
5.1 Dimensions — Tolerances — Masses
Configuration : see Figure 1; the bearings are fitted with either seals or shields.
Values : see Figure 1 and Table 1: values after surface treatment.
5.2 Surfaces roughness
Rolling elements and raceway: R5 = 0,2 pm
Bore, side faces and cylindrical outer surface: R5 0,8 pm
For code T values prior to the surface treatment
5.3 Materials
Rod ends steel EN 2136 or TR 3775; heat treated to obtain:
— by case hardening, hardening and tempering a surface hardness of  58 HRC on the raceway;
— by hardening and tempering to a strength of Rm > 830 MPa on the whole rod end.
Bearing : Inner ring : Steel EN 2030 or EN 2226,  58 HRC Balls Steel EN 2030 or EN 2226,  58 HRC
Seals . Polytetrafluoroethylene (PTFE) or glass fabric reinforced polytetrafluoroethylene
(PTFE)
Shields : Corrosioc resisting material
5.4 Surface treatment
Rod end : passivation ISO 8074
Bearing : passivation ISO 8075: code T
with no surface treatment: no code
5.5 Thread
MJ thread to ISO 5855-2. rolled
Right hand thread, code R
Left hand thread, code L.BS EN 4036-2006 pdf download.