A beam coupling, also known as helical coupling, is a flexible coupling for transmitting torque between two shafts while allowing for angular misalignment, parallel offset and even axial motion, of one shaft relative to the other. Failure to do so may cause the power transmission product to break and parts to be thrown with. This hub design should be used in applications with nonreversing and low torque characteristics. Lovejoy torsional couplings are designed to dampen torsional vibrations and tune, or adjust the systems critical speeds away from the applications operating range. The gear coupling has more torque capability than the shaft can transmit. Use a flex coupling to directmount your engine to pump. Rigid couplings will keep backlash to a minimum, since the coupling is one single piece. He is coauthor of a book and has authored several published papers and patents. Lovejoy has misalignment info in the catalog which is on the net.
The coupling can act as a mechanical fuse to protect equipment. The coupling handbook, a 176page illustrated reference work offered by lovejoy, inc. The slots of the disk fit on the tenons of the hub with a slight press fit. Lovejoy 10206 size l050 standard jaw coupling hub, sintered iron, inch, 0. The lovejoy coupling handbook introduction the goal of this handbook is to assist you with the process of sorting out the myriad of coupling styles that exist to select the one best suited to your application. Coupling news newspapers books scholar jstor march 2012.
Half jaw couplings are a type of flexible coupling used with motors and engines, to correct misalignment, reduce sudden shock loads, and reduce vibration. Lovejoy 10211 size l050 standard jaw coupling hub, sintered. The gs series curved jaw coupling offers zero backlash capability in a. Elastomer couplings are vibration damping, preloaded. Coupling torque speed ofbores torsionally torsionally backlash type rangenm capacity mm soft rigid free universaljoints 10to580 lowtomedium 6to50 4 oldham 0. This hub transfers shock and misalignment from the shaft to the center element of the coupling assembly for reduced wear on the shaft assembly. Gear couplings can be sized to make sure that wear life is consistent with the rest of the machines design. Msc industrial supply is here to support all your metalworking and maintenance repair needs with over 1 million products in stock and ready to ship today.
Order two halves plus insert for complete coupling. Clamping style recommended for backlash free torque transmission. This lovejoy u type uniflex coupling is an allsteel, singlepiece coupling that connects two rotating shafts, providing low backlash windup. We carry lovejoy couplings in such a variety that youre sure to find the flexible and shaft couplings you need. Shop a large range of lovejoy 34 inch flexible coupling at msc industrial supply. Without keyway, with set screw set screw used to secure hub to shaft. Simple installation of this coupling is a unique feature. For precise and backlashfree operation in a multitude of applications. Feb 01, 2014 assembly lovejoy coupling, solidworks.
When you go to apply the same amount of torque in the opposite counterclockwise direction, there is some. When the oem does that, it can be done with the confidence that the coupling will not fail. Lovejoy couplings any advice and setting up alignment. Lovejoy ec112 68514456654 single beam clamp style coupling. Miniature bellows couplings are ideal for smaller components with torques in the range of 0. When ordering, get one side to fit the motor and the other side to fit the pump shaft dia. The lovejoy coupling handbook lovejoy a timken company. This press fit allows the coupling with an acetal disk to operate with zero backlash. Supplied and in use around the world, lovejoy s curved jaw couplings can meet your every curved jaw need.
They consist of 2 half couplers of the same or motor changeable series l075, l090, l095, l099, l100 and a matching flexible spidershock absorber. There is an ongoing debate on what tolerances are acceptable when aligning your rotating equipment. Lovejoy couplings stainless steel jaw series catalogue. Lovejoys products in its couplings and power transmission line include. An essential component of jaw couplings, flexible elastomeric spiders transmit. Elastic curved jaw couplings reduce intermittent shortperiod torsional shocks by storing part of this shock energy elastically. The grabcad library offers millions of free cad designs, cad files, and 3d models. Reliable, flexible and permanently backlash free shaft coupling. Power transmission parts lovejoy coupling, find complete details about power transmission parts lovejoy coupling,lovejoy coupling,lovejoy coupling,lovejoy coupling from shaft couplings supplier or manufacturersichuan reach jiayuan machinery co. A jaw coupling is a type of general purpose power transmission coupling that also can be used. Lovejoy 10207 size l050 standard jaw coupling hub, sintered iron, inch, 0. Lovejoy coupling products cater to a wide range of industries such as, steel, pulp and paper, power generation, food processing, mining and construction.
Besides jaw couplings, be sure to pick up spider inserts to complete the coupling. The design allows for backlashfree torque transmission. With the proper information, lovejoy engineers can perform a torsional vibration analysis or tva for your application to assist in the selection of a torsional coupling. We manufacture millions of standard products while developing tailormade components for you as well. The gear coupling eventually wears without a spectacular failure. Backlash the amount of free movement between two rotating mating parts. The lovejoy lf series torsional couplings is the most versatile lovejoy torsional coupling. Oilresistant synthetic rubber inserts are used between the coupling halves to provide an equalized cushioned drive. The screws that clamp the shafts will be tightened, but not too much. Lovejoy has been manufacturing couplings since 1927. Keyway with set screw kw standard lovejoy method of securing a hub to a shaft. The gs series provides a zero backlash, flexible connection for servo and positioning drives.
Flexibility of bellows coupling plus torsional stiffness and strength of disc coupling. Join the grabcad community today to gain access and download. A wide variety of lovejoy couplings options are available to you, such as structure, flexible or rigid, and standard or nonstandard. Bore sizes 34 to dultmeier sales will be closed thursday, november 22nd and friday, november 23rd in observance of thanksgiving. We know the features, application, technical specification, certificates and other. Zerobacklash coupling, backlashfree coupling all industrial. High availability due to flexible modular construction. Mini disc style md, mds, and mdsd series zero backlash design highest torsional stiffness all metal aluminum hubs, stainless steel discs moderatehigh torque, low inertia resources mini disc style md, mds, and mdsd series additional resources click here. Discover the zerobacklash coupling product range of lovejoy.
Spiders are key to jaw coupling performance machine design. Power transmission products 2016 power t ransmission. Mini disc style md, mds, and mdsd series lovejoy a. Lovejoy 11494 size lal 099100 solid type jaw coupling elastomer spider, soxnbr rubber, 2. Gear couplings are generally limited to angular misalignments, i. Configurations include flange to shaft, shaft to shaft, and floating shaft. The gear teeth in a gear coupling have high backlash to allow for angular misalignment. The elastomeric coupling is a nonlubricated flexible coupling with benefits such as long life, simple installation, wrap around design, rubber in compression, cushions shock loads, corrosion resistant, and dampens torsional vibrations. Gs series aluminum hubs inch imperial bores on lovejoy, inc. A coupling is a device used to connect two shafts together at their ends for the purpose of. When torque is being applied in one direction say, clockwise, the components of the coupling bend, twist, and compress under that stress.
Type oldham coupling maximum bore diameter inch 12 minimum bore diameter inch 12 outside diameter decimal inch 1. Lovejoy is a global leader in couplings, power transmission, hydraulic components, and rubber suspension technology lovejoy couplings and power transmission products. Table of contents 14 6308520500 when using lovejoy products, you must follow these instructions and take the following precautions. Home industrial bearings shaft coupling shaft coupling spider l099100. This lovejoy standard jaw coupling hub replaces hubs on lovejoy l type jaw style flexible couplings and is made of iron sintered with powdered metals for strength, durability, and corrosion resistance. Excellent misalignment capability compensation of shaft misalignments minimum mass moment of inertia. Either way, you can use a hose clamp around the coupling to hold it somewhat centered while you shim the engine. These disc packs are bolted onto the disc hubs, which then form the end components of the disc coupling. This high torsional stiffness minimizes backlash between motor and driven. The flexing center of the coupling consists of three opposingly wound square wire springs for forward or reverse operation, providing low backlash windup. Ruland jd101598r is a zerobacklash jaw coupling spider. Lovejoy makes several kinds of couplings, but the most common is the 3 jaw.
With tens of millions of applications currently running around the world using jaw couplings, this coupling type is one of the most trusted power transmission devices on. Disc coupling hubs support disc couplings, which join shafts and transmit torque between two shafts in highspeed applications. Lovejoy 11075 size lal 090095 open center type jaw coupling elastomer, urethane, 78 open center, 2. Bore comes with keyway and set screw for security and reliability. We have the expertise to engineer custom coupling products to meet the complex needs of each individual customer. Lovejoy 35350 size 5je solid design sflex coupling sleeve, epdm rubber, 2. Failure to do so may cause the power transmission product to break and parts to be thrown with suf. About 88% of these are shaft couplings, 1% are pipe fittings. Lovejoy coupling lovejoy coupling is the world leader in flexible coupling knowledge. Couplings for motors and lead screws build your cnc. Supplied as a complete pilot bored coupling with standard spider.
For applications that have vibrations at critical speeds, the gs series coupling can provide a zero backlash solution for vibration problems. Based in downers grove, il, with additional locations in the u. For applications that have vibrations at critical speeds, the gs series coupling can provide a. We know the features, application, technical specification, certificates and other specifications requirted for it to properly work. May 07, 2015 when torque is being applied in one direction say, clockwise, the components of the coupling bend, twist, and compress under that stress. Jaw type couplings in the industrys largest variety of stock borekeyway combinations, including jaw inshear type. Types of shaft couplings a thomas buying guide thomasnet. The lovejoy motion control coupling quick reference chart of the motion. An added benefit of the gs series is its damping capabilities. Lovejoy u37r shafttoshaft uniflex coupling, 14 bore a. Most popular advantage exclusives top rated price low to high price low to high price high to low price high to low brand a z brand z a. Zerobacklash curved jaw couplings are best suited for applications that rely on a.
Disc couplings are made up of a series of thin metal rings, or discs, that attach to one another to form disc packs. Power transmission parts lovejoy coupling buy lovejoy. Coupling failure analysis jaw couplings includes hub. Bushing bore availability can be found in current lovejoy list price books or from your. Lovejoy l100 x 1 std 14 x 18 kw hub motion industries. Looking for lovejoy sleeve coupling flange, 6j, bore 8 1l8. For lovejoy couplings used for joining two shafts, look no further than agri supply, which offers more than 26,000 products for farm, shop, home.
This design utilizes a single piece of material and becomes flexible by removal of material along a spiral path resulting in a curved flexible beam of helical. Bore reducers available to fit a wide variety of bore combinations. The debate falls on the published tolerances provided by the coupling manufacturers and the tolerances recommended by alignment equipment companies, reliability associations and rotating equipment oems. They offer the same level of precision as standard size bellows couplings in devices such as encoders, stepper motors, tachometers, measurement and control systems, and small servo drives. Generally, the motor shaft with a 14 diameter will be inserted in one end, and a shaft, or lead screw also measuring 14 in diameter will be inserted into the other end.
Lovejoy 10207 size l050 standard jaw coupling hub, sintered. Lovejoy l100 x 1 std 14 x 18 kw hub 68514411516 jaw coupling hub cplg size. We are one of the pioneers in various types of pin cataloghe coupling products. It is designed to transmit torque by connecting two shafts while damping system vibrations and accommodating misalignment, which protects other components from damage. Lovejoy zerobacklash couplings all the products on directindustry. Lovejoy 10206 size l050 standard jaw coupling hub, sintered. As the premier manufacturer of couplings in the world, lovejoy offers the full line of the european standard jaw coupling. Lovejoy 41450 size l050 standard jaw coupling hub, sintered iron, metric, 10 mm bore, 27. Gs series aluminum hubs inch imperial bores on lovejoy. Size check select a gear coupling to connect a 500 hp, 1170 rpm electric motor to a drive high speed shaft of a maneuvering winch. A jaw coupling is a type of general purpose power transmission coupling that also can be used in motion control servo applications. This lovejoy anodized aluminum clamp style single beam coupling is intended for use in angular, parallel, and axial misalignment scenarios requiring zero backlash and less weight and quicker response time than a stainless steel coupler has. Power transmission parts lovejoy coupling, find complete details about power transmission parts lovejoy coupling, lovejoy coupling, lovejoy coupling, lovejoy coupling from shaft couplings supplier or manufacturersichuan reach jiayuan machinery co. Reliable, flexible and permanently backlashfree shaft coupling.
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