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Shur-Lok Expandable Diameter Fasteners Catalog

GENERAL INTRODUCTION EXPANDABLE BUSHING CONCEPT Expandable bushings provide a means of accomplishing a specific cylindrical fit of a …

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Text of Shur-Lok Expandable Diameter Fasteners Catalog

Expandable Diameter FastenersCatalogShur-LokTABLE OF CONTENTSGeneral Introduction1/2Expandable Dia. Bolt Features and Benefits3SL50101Expandable Dia. Bolts4SLT50015Installation Tool - Expandable Dia. Bolts & Shafts5Expandable Dia. Blind Bolt Features and Benefits6SL51101Expandable Dia. Blind Bolts7/8SL52101Expandable Dia. Shafts Features and BenefitsExpandable Dia. Shafts910TABLE OF CONTENTS CONTINUEDExpandable Dia. Clamp -Up Bolt Features and Benefits11SL53101Expandable Dia. Clamp - Up Bolts12Expandable Dia. Cam Actuated Features and Benefits. 13/15SL54101Pin Expandable Dia. Cam Actuated16/17GENERAL INTRODUCTIONEXPANDABLE BUSHING CONCEPTExpandable bushings provide a means of accomplishing aspecific cylindrical fit of a round object in a round hole by asimple mechanical adjustment rather than the usual relianceupon expensive, close-tolerance machining, press or freeze fits, bushings are basically mechanical sleeve typebushings, capable of creating a variable wall thickness whichcan be adjusted at the time of the initial installation or at anydesired time thereafter. Such bushings are made up of an assem-bly of short bushing elements, alternately tapered on the so as to mate with each other as iIlustrated. An axialslot thru one wall of each element permits easy compressive force applied against the ends of such an as-sembly, ,to shorten its overall length, forces the femalesegments to expand, creating a larger effective on theassembly. At the same time the male segments are forced in-wards to create a smaller ; the net result being a thickerwall on the bushing assembly. Each individual segment isfree to find its own seat or diametrical limit when adjusted,permitting use in stepped or slightly tapered design provides a mechanical sleeve type bushingwhich installs freely and easily and can be adjusted for virtual-ly any desired tightness of cylindrical fit. When the adjustingforce is relaxed, the bushing segments return to their originaldiameters, are easily removed and readily of appropriate materials they make a plain sleeve bear-ing that (a) requires no machining at the time of installationin order to establish the proper fit; (b) can be adjusted at anytime for a looser or tighter fit, or to compensate for wear; (c)makes replacement simpler to accomplish than with an ordinarypressed fit bushing; (d) when properly arranged with an adjust-ing mechanism, readily functions as an intermittent clutch, brake,mechanical fuse, BUSHING APPLICATIONSThe expandable bushing performs successfully when utilizedas an improved method of mounting anti-friction bearings in ap-plications previously considered impossible due to high inertiaor dynamic loads, as in crank journals or other reciprocatingmachinery , expandable bushings are commonly utilized asshaft clamps, or means of securing machine elements such asgears, sprockets, pulleys, etc.,onto shafts. Properly arranged,extremely high torque loads can be transmitted in this mannerwhile providing fatigue capabilities superior to more conven-tional shaft mounting methods. Removal, relocation and indexingof such hub devices on a shaft are expandable bushing concept has been utilized to createa family of expandable diameter fasteners, including expandablediameter bolts, expandable diameter blind bolts, expandablediameter quick-acting pins, and DIAMETER BOLTSAn expandable bushing assembly installed on the shank ofan ordinary bolt creates an expandable diameter bolt that in-stalls freely and easily in a hole. When the nut is tightenedagainst the bushing assembly it becomes radially tight in thehole. Such expandable diameter bolts are as easy to remove asan ordinary nut and bolt and every bit as diameter bolts provide the capability of fab-ricating demountable rigid (minimum deflectior under load)structural joints. The extremely tight radial fit of these fasten-ers makes them ideal for resisting shock loads, severe vibra-tion, reversing, and cyclic shear fatigue type INTRODUCTIONEXPANDABLE DIAMETER BLIND BOLTSModifying an expandable bolt slightly by reducing the headof the core bolt so that it will pass freely thru the structurehole and adding a means by which the core bolt may be restrain-ed against rotation while wrenching the nut gives one a trueexpandable diameter blind bolt. This type fastener can be in-stalled and tightened from one side of the structure and is idealfor use in blind holes. Further, it is easily removed andreadily DIAMETER QUICK-ACTING PINSWhen the blind bolt is modified to utilize a cam type handleto expand the bushings rather than a threaded nut, you havea quick-acting expandable diameter pin. Such a pin can betightened or relaxed by one simple, quick, easy motion, yetwhen installed, provides a tight radial fit in the hole. Whenrelaxed, there is ample clearance for installation and type fastener offers high shear capability and, being radial-ly tight in the hole, is applicable in areas of high shear fatigue,high shock loading, and difficult vibration. Its capability inthis area is exhibited by its growing popularity for attachingthe blades to the rotor on helicopters where it has providedhundreds of thousands of hours of satisfactory hole filling, expandable diameter pins make idealtooling aids by providing good alignment of attached parts. Ad-ditionally, since these pins shorten slightly on being tightenedin the hole, they provide a clamp-up capability that is oftenutilized where a quick-acting clamping method is requiredsuch as the closing of hand operated molds, tooling clampsand fixtures, radial tightness developed by these installed pinsresults in their ability to resist a fair tensile load and theyare therefore utilized in tensile applications such as anchoringor hoisting operations. Since they are installed and removedentirely from one side of the structural joint they are trulyblind fasteners and function perfectly in blind AND BENEFITSEliminates all radial a rigid wear in the hole alignment and high axial clamp-up limited only by thread DIA. BOLTFEATURES and BENEFITSSTANDARD NOMINAL HOLE SIZESSPECIAL OPTIONSCaptive Segments- To prevent removal of thebushing segments from the core bolt when the nutand washer are removed, thus eliminating loss ofthe individual - To secure the removed fastener nearsits hole to prevent loss and provide for Ring- Prevents loss of the fastenerfrom the hole even if radial tightness is locking features such as cotter pins, lockwires, SIZES AVAILABLE ON through inch3EXPANDABLE DIA. BOLTSEXPANDABLE DIA. BOLTSSL50101SHEET1OF14INSTALLATION TOOLSLT50015INSTALLATION TOOL,EXPANDABLE DIA. BOLTS AND SHAFTSSHEET 1 OF 15FEATURES AND BENEFITSEXPANDABLE DIA. BLIND BOLTFEATURES and BENEFITSEliminates all radial a rigid hole alignment high in applications whereaccess is limited to one side, ora blind hole is quick installation axial clamp-up limited only by NOMINAL HOLE SIZESSPECIAL OPTIONSLanyard - to secure the removedfastener near installation hole to preventloss and provide easier Ring - A bushing segment thatis designed to provide limited expansiongreater than the hole diameter. Thissegment is located outside the hole toenhance the ability of the fastener toresist tensile Ring - Prevents loss of thefastener from the hole even if radialtightness is locking features such as cotter pins,lock wires, SIZES AVAILABLE ON through inch6EXPANDABLE BOLTSEXPANDABLE BOLTSSL51101 SERIESSHEET1OF27EXPANDABLE BOLTSEXPANDABLE DIA. BLIND FEATURESSL51101 SERIESSHEET2 2OF8FEATURES AND BENEFITSEliminates all radial a rigid wear in the hole alignment high assembly is tightenedfrom both axial clamp-up limited only by NOMINAL HOLE SIZESEXPANDABLE DIA. SHAFTSFEATURES and BENEFITSSPECIAL OPTIONSCaptive Segments - To prevent removalof bushing segments from the core shaftwhen the nuts and washers are removed,eliminating loss of individual - To secure the removedfastener near installation hole to preventloss and provide for easier Ring - Prevents loss of thefastener from the hole even if radialtightness is locking features such as cotter pins,lock wires, SIZES AVAILABLE ON through inch9EXPANDABLE DIA. SHAFTSEXPANDABLE DlA. SHAFTSSL52101 SERIESSHEET1OF110FEATURES AND BENEFITSEliminates all radial a rigid wear in the hole alignment high to provide axialclamp - up of the DIA. CLAMP-UPBOLTS, FEATURES and BENEFITSLIMITATIONSReusability limited only bythread need to be tightenedequally from both NOMINAL HOLE SIZESSPECIAL OPTIONSLanyard - To secure the removed fastenernear installation hole to prevent loss andprovide for easier locking features such as cotter pins,lock wires, SIZES AVAILABLE ON through inch11EXPANDABLE BOLTSEXPANDABLE BOLTSSL53101 SERIESSHEET1OF112EXPANDABLE DIA. CAMACTUATED, FEATURES and BENEFITSFEATURES AND BENEFITSEliminates all radial a rigid wear in the hole alignment and high initial adjustment for desired radialtightness, no tools are required forsubsequent installation or removal in quick installation and axial clamp-up mechanical advantage available toachieve desired radial tightness than otherEDF pin must be adjusted for desired radialtightness at initial installation and readjustedif used in another NOMINAL HOLE through inchSPECIAL OPTIONSLanyard - To secure the removed fastener nearinstallation hole to prevent loss and provide Ping - A bushing segment that is designed toprovide limited expansion greater than the hole segment is located outside the hole to enhancethe ability of the fastener to resist tensile Ping - Prevents loss of the fastener fromthe hole even if radial tightness is locking features such as Locking Cam SIZES AVAILABLE ON REQUEST13EXPANDABLE DIA. CAMACTUATED, FEATURES and BENEFITSFEATURES AND BENEFITSEliminates all radial a rigid wear in the hole alignment high in applications whereaccess is limited to one side,or a blind hole is quick installation adjusted to accommodatespecific hole diameter and Clip over cam pin retainscam in located close tolerance clamp-up adjustable by customerafter factory NOMINAL HOLE SIZESSPECIAL OPTIONSLanyard-To secure the removed fastener nearinstallation hole to prevent loss and providefor easier Ring-A bushing segment that isdesigned to provide limited expansion greaterthan the hole diameter. This segment islocated outside the hole to enhance the abilityof the fastener to resist tensile Ring-Prevents loss of the fastenerfrom the hole even if radial tightness is locking feature such as cotter pins, lockwires SIZES AVAILABLE ON through inch14EXPANDABLE DIA. CAMACTUATED, FEATURES and BENEFITSFEATURES AND BENEFITSEliminates all radial a rigid wear in the hole alignment high initial adjustment for desired radialtightness, no tools are required forsubsequent installation or removal in thesame quick installation and clip over pin nose retains handlein closed axial clamp-up mechanical advantage available toachieve desired radial tightness thanother EDF must be adjusted for desired radialtightness at initial installation, andreadjusted if used in another NOMINAL HOLE through inchSPECIAL OPTIONSLanyard - To secure the removed fastener near itshole to prevent loss and provide for Ring - A bushing segment that is designedto provide limited expansion greater than the holediameter. This segment is located outside thehole to enhance the ability of the fastener to resisttensile Ring - Prevents loss of the fastenerfrom the hole even if radial tightness is locking features such as cotter pins, lockwires, SIZES AVAILABLE ON REQUEST15EXPANDABLE ACTUATEDPIN EXPANDABLE ACTUATEDSL54101 SERIESSHEET 1 OF 216EXPANDABLE ACTUATEDSL54101 SERIESPIN EXPANDABLE DIA. CAM ACTUATEDOPTIONAL FEATURESSHEET2 2OF17

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