SAE AIR1594C
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Plain Bearing Selection for Landing Gear Applications
Hardcopy , PDF
29-04-2018
English
09-11-2015
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1. SCOPE
2. REFERENCES
3. PLAIN BEARING CONFIGURATIONS
4. LANDING GEAR BEARING CONSIDERATION
5. MATERIAL SELECTION FOR LUBRICATED BEARINGS
6. WORKING PRESSURES FOR LUBRICATED BEARINGS
7. INTERFERENCE FITS FOR JOURNAL BEARINGS
8. BEARING TO PIN CLEARANCES
9. CORROSION PREVENTION
10. LUBRICATION
11. SELF-LUBRICATING BEARINGS
12. INSTALLATION OF SELF-LUBRICATING BEARINGS
13. WORKING PRESSURES FOR SELF-LUBRICATING BEARINGS
14. MATING PIN/SHAFT SURFACE FINISHES
15. ENVIRONMENTAL CONCERNS
16. NOTES
Aims to provide advisory information for the selection of plain bearings and bearing materials most suitable for aircraft landing gear applications.
| DocumentType |
Standard
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| Pages |
16
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| PublisherName |
SAE International
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
This document is intended to give advisory information for the selection of plain bearings and bearing materials most suitable for aircraft landing gear applications. Information included herein was derived from bearing tests and service experience/reports. Airframe/landing gear manufacturers, commercial airlines, the U.S. Air Force and Naval Air Systems Command provided input for the document.Information is given on bearing installation methods and fits that have given satisfactory performance and service life.Base metal corrosion is a major cause of problems in bearing installations for landing gears. Therefore, methods of corrosion prevention are discussed.Effort is directed toward minimizing maintenance and maximizing life expectancy of landing gear bearings. Lubricated and self-lubricating bearings are also discussed.There are wide ranges of bearing load and motion requirements for applications in aircraft landing gears. For this reason, it is the responsibility of the designer to select that information which pertains to the particular application.Anti-friction bearings, defined as rolling element bearings generally used in wheel and live axle applications, will not be discussed in this document.Landing gear shock strut bearing design and selection criteria are covered in AIR5883 and, therefore, are not discussed in detail in this document.
| SAE ARP1311C | Landing Gear Structures and Mechanisms |
| SAE AIR5883 | Landing Gear Shock Struts Bearing Selection |
| SAE AMS4534C | Copper-Beryllium Alloy, Bars and Rods 98Cu - 1.9Be Solution Heat Treated, Cold Worked, and Precipitation Heat Treated (TH04, formerly HT) |
| SAE AS14103E | BEARING, PLAIN, SELF-LUBRICATING, SELF-ALIGNING, LOW SPEED, WIDE, GROOVED RACE, -65 TO +325 °F |
| SAE AS81934/1A | BEARING, SLEEVE, PLAIN, SELF-LUBRICATING, −65 °F TO 325 °F |
| SAE AMS4598A | Copper Nickel Tin Alloy, Mechanical Tube 77Cu - 15Ni - 8Sn Solution Annealed and Spinodal Hardened (TX 00) |
| SAE AMS4596B | Copper Nickel Tin Alloy, Bars and Rods 77Cu – 15Ni – 8Sn Solution Annealed and Spinodal Hardened (TX 00) |
| SAE AS81820D | Bearings, Plain, Self-Aligning, Self-Lubricating, Low Speed Oscillation |
| SAE AMS 4881 : D2012(R2018) | NICKEL-ALUMINUM-BRONZE, MARTENSITIC, SAND, CENTRIFUGAL AND CONTINUOUS CASTINGS, 78CU - 11AL - 5.1NI - 4.8FE, QUENCH HARDENED AND TEMPER ANNEALED |
| MIL-PRF-81733 Revision D:1998 | SEALING AND COATING COMPOUND, CORROSION INHIBITIVE |
| MIL-PRF-32014 Revision A:2006 | GREASE, AIRCRAFT AND INSTRUMENT |
| SAE AS81936A | Bearings, Plain, Self-Aligning (Cu-Be Ball, CRES Race) General Specification For |
| SAE AMS 4880 : 2005 | ALUMINUM BRONZE ALLOY, CENTRIFUGAL AND CONTINUOUS-CAST CASTINGS - 81.5CU - 10.3AL - 5.0NI - 2.8FE QUENCH HARDENED AND TEMPER ANNEALED (TQ50) |
| SAE AIR5883 | Landing Gear Shock Struts Bearing Selection |
| SAE AMS5643U | Steel, Corrosion-Resistant, Bars, Wire, Forgings, Mechanical Tubing, and Rings 16Cr - 4.0Ni - 0.30Cb (Nb) - 4.0Cu Solution Heat Treated, Precipitation Hardenable |
| MIL-B-8942 Revision A:1965 | Bearings, Plain, TFE Lined, Self-Aligning |
| SAE AMS4590C | Extrusions, Nickel-Aluminum Bronze, Martensitic 78.5Cu – 10.5Al – 5.1Ni – 4.8Fe Quenched and Tempered (TQ50) |
| SAE AS21230A | BEARING, PLAIN, SELF-ALIGNING, GROOVED OUTER RING PTFE LINED, WIDE |
| SAE AMS4533D | Copper-Beryllium Alloy, Bars and Rods 98Cu - 1.9Be Solution and Precipitation Heat Treated (TF00, formerly AT) |
| SAE AMS 4597 : 2011 | COPPER-NICKEL-TIN ALLOY, BARS AND RODS, 77CU - 15NI - 8SN, SOLUTION ANNEALED, COLD FINISHED AND SPINODAL HARDENED (TX TS) |
| SAE AS81934B | Bearings, Sleeve, Plain and Flanged, Self-Lubricating |
| SAE AS81935C | Bearings, Plain, Rod End, Self-Aligning, Self-Lubricating, General Specification For (-65 to +325 °F) |
| MIL-DTL-83488 Revision D:1999 | COATING, ALUMINUM, HIGH PURITY |
| MIL-PRF-81322 Revision G:2005 | GREASE, AIRCRAFT, GENERAL PURPOSE, WIDE TEMPERATURE RANGE, NATO CODE G-395 |
| SAE ARP5935 | Use of HVOF Thermal Spray Coatings for Hard Chrome Replacement in Landing Gear Applications |
| SAE AS14101D | BEARING, PLAIN, SELF-LUBRICATING, SELF-ALIGNING, LOW SPEED, NARROW, GROOVED RACE, -65 TO +325 °F |
| SAE AS14104D | BEARING, PLAIN, SELF-LUBRICATING, SELF-ALIGNING, LOW SPEED, NARROW, CHAMFERED RACE, −65 TO +325 °F |
| ASTM E 1444 : 2005 | Standard Practice for Magnetic Particle Testing |
| SAE AS81934/2A | BEARING, SLEEVE, FLANGED, SELF-LUBRICATING, −65 °F TO 325 °F |
| SAE AMS4535D | Copper-Beryllium Alloy, Mechanical Tubing 98Cu - 1.9Be Solution and Precipitation Heat Treated (TF00, formerly AT) |
| MIL-PRF-16173 Revision E:1993 | CORROSION PREVENTATIVE COMPOUND, SOLVENT CUTBACK, COLD-APPLICATION |
| MIL-B-8943 Revision A:1966 | BEARINGS, JOURNAL - PLAIN AND FLANGED, TFE-LINED |
| SAE AS14102D | BEARING, PLAIN, SELF-LUBRICATING, SELF-ALIGNING, LOW SPEED, WIDE, CHAMFERED RACE, −65 TO +325 °F |
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