SAE AS 14184-2000 pdf download NONMETALLIC SHAFT-COUPLING DETAILS, ENGINE DRIVEN ACCESSORIES
SPLINES. MALE SHAFT SPLINES SHALL HAVE A MINIMUM SURFACE HARDNESS OF 34 ROCKWELL C TO A MINIMUMCASE DEPTH OF 0035 INCHES
2. MATERIAL SELECTION THE PLASTIC SPLINED BUSHING SHALL BE FABRICATED FROM HIGH STRENGTHSELF-LUBRICATING POLYMERIC MATERIALS HAVING ULTIMATE COMPRESSIVE STRENGTHS OF A MINIMUM OF28.000 PSL TYPICAL MATERIALS INCLUDE THE POLYAMIDEARAMID AND POLYAMIDE-IMIDE BESINSBELOGINGTO THE DUPONT VESPEL AND AMOCO TORLON FAMILIES. THE PROCESS OF MATERIAL SELECTION SHOULDCONSIDER STRENGTH, FATIGUE AND AGING PROPERTIES FLUID COMPATIBILITY THEMAL EXPOSUREDIMENSIONAL STABILITYAND FORMING PROPERTIES
SHEAR SECTION. THE SHAFT SHALL INCLUDE A SHEAR SECTION ALLOWING THE SHAFT TO SHEAR AT THE3.
TORQUE SPECIFIED BY THE SPECIFICATION FOR THE ACCESSORY EQUIPMENT.
NOTES:
1. DIMENSIONS.ALL LINEAR DIMENSIONS ARE IN INCHES EXCEPT ROUGHNESS WHICH ARE IN MICROINCHES
2APPLICATION,THE SPECIFIED BUSHINGS MAY BE USED ONLY WITH NVOLUTE SPLINES HAVING 30 DEGREPRESSURE ANGLES
3.FINISH.ALL BURRS AND SHARP EDGES SHALL BE REMOVED
4, APPLICATION.THIS COUPLING S DESIGNED TO BE USED AT THE INTERFACE OF AIRCRAFT ACCESSORIES ANDTHE OUTPUT SHAFT OF THE AIRCRAFT ENGINE DRIVE PAD WITHOUT MODIFICATION OR REPLACEMENT OF THEEXISTING FEMALE OUTPUT SHAFT THE FEMALE SHAFT SPLINE SHALL BE THOROUGHLY CLEANED TO REMOVESEDIMENT AND GREASE BEFORE INSTALLATION OF THE BUSHING.THE DESIGN RESULTS IN AN INTERERENCEFIT OF THE BUSHING INTO THE INVOLUTE SPLINE AND A SLIDING FIT OF THE NEW ACCESSORY SHAFT INTO THEBUSHING.
INSTALLATION. THE NONMETALLIC SPLINE ADAPTER IS DESIGNED TO BE INSTALLED IN THE DRIVE SHAFT5FEMALE SPLINE PRIOR TO INSTALLING THE DRIVEN ACCESSORY NONMETALLIC SPLINE ADAPTER ARE INTENDEDTO FIT IGHTLY IN THE FEMALE SPLINE IN WHICH THEY ARE INSTALLED. TO AVOID DAMAGING THE DRIVE SHAFTOR ACCESSORY SHAFT BEARINGS AND SEALSTHE SPLINE ADAPTERS SHOULD BE PRESSED INTO THE MATINGSPLINES AND THE PRESSURE SHOULD BE REMOVED AS SOON AS THE SPLINE ADAPTER IS FULLY INSTALLED.
6. RETENTION AND PRELOAD. THE NONMETALLIC SPLINE ADAPTERS HAVE BEEN DESIGNED TO FIT TIGHTLY IN NEWFEMALE SPLINES,THE TIGHTNESS OF THE IT WILL DIMINISH WHEN THE NONMETALLIC ADAPTER IS INSTALLEDIN WORN OR USED FEMALE SPLINES. THE SPLINE ADAPTER HAS BEEN DESIGNED TO FIT TIGHTLY TO ACHIEVE ACOMPRESSIVE PRELOAD WHICH EXTENDS THE OPERATING TORSIONAL RANGE OF THE NONMETALLIC SPLINEADAPTER. THE TIGHT FIT ALSO PROVIDES A RESISTANCE TO AXIAL MOVEMENT WHICH AFFORDS SOME DEGREEOF RETENTIONHOWEVER, THE APPLICATION GENERALLY SHOULD REQUIRE SOME POSITIVE METHOD OF AXIALRETENTION OF THE PARTPOSITIVE RETENTIO CAN BE ACHIEVED BY A VARIETY OF METHODS INCLUDINGLENGTHENING THE NONMETALLIC ADAPTER,INCORPORATION OF FLANGES IN THE ADAPTER DESIGN,AND THEUSE OF SNAP OR SPIRAL LOCK RINGS TO LIMIT THE AMOUNT OF AXIAL CLEABANCE
SAE AS 14184-2000 pdf download
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