Nnflexible disc coupling pdf

Find coupling in the coupling type section of catalog that meets the minimum required torque rating. Disc type couplings steps in selecting torsionally rigid disc. Read online thomas flexible disc couplings cda magazine book pdf free download link book now. This category of couplings covers many different manufacturers, but the common design feature is the flexible element that has holes on a single diameter. Rexnord thomas flexible disc couplings overview a flexible coupling is a device used to connect the ends of two shafts, transmit torque, and at the same time, accommodate slight misalignments which develop in service. The thickness of the discs and distance between bolts determines the amount of flexibility. Our products are used in steel mills, paper mills, water treatment plants and many other industrial power transmission. Zero backlash, aluminium hub, stainless steel bellow. Please read through our information included in the respective type examination. The disc coupling has a built in overload capability.

This site is like a library, you could find million book here by using search box in the header. Find details of companies offering flexible disc coupling at best price. Design and functionality of rexnord modulflex disc coupling rexnord modulflex torsionally stiff, flexible disc couplings are allmetal couplings complying with standard 740. Sensata data sheets are solely intended to assist designers buyers who are developing systems that incorporate sensata. Use the following nomenclature guide to identify and order thomas disc couplings. Your trusted source for disc couplings api 610671 compliant. Rm flexible disc coupling rm dimensional data rm coupling selection data based on 1. Our product consists of disk element, bush and washer in a package, so the connection or removal of coupling can be done easily. Motion control coupling, oldham coupling disc, outside dia 1.

Ruland disc couplings are an assembly of two anodized aluminum hubs and multiple thin, flat stainless steel disc springs. Disc couplings industrial the trusted tb woods formflex metal disc style shaft coupling has successfully been used in conjunction with composite shafting for many years. It is designed to be flexible, while remaining torsionally strong under high torque loads. Higher rotational speeds can be achieved via balancing with bore sizes from 25mm to 400mm being catered for. Disc coupling shaft coupling manufacturers hnc coupling. These couplings, which provide optimum contact with the shaft, can accommodate high torque values. This disc pack is connected in an alternate way to the hub flange or the eventual spacer, by using screws in steel class 10. Disc couplings can be circular, scalloped or straightsided, depending on the shape of the flexible discs. The inside diameter of the rubber disk element is vulcanized on a flange.

The effect of the disc geometry in the transverse vibrations is investigated for angular and parallel misalignment, based on orbit shapes and full spectrum information. Flexible disc couplings industrial universal joints. Thomas flexible disc couplings ach aandrijftechniek. These couplings use the same principle as our flfiximite flexible disc couplings weve been making since 1951, but made of one piece of aluminum for lower cost. This product contains chemicals known to the state of california to cause cancer andor birth. Hrc, resilient couplings from 30 to 3,150nm, available in taper lock and pilot bore variants jaw couplings from 0. High speeds the discflex mr coupling is manufactured to close tolerances to achieve high concentricity and perpendicularity and is therefore. To transmit power from one shaft to another, efficiently and. Formflex couplings transmit torque while compensating for angular, parallel and axial misalignment between two connected shafts.

Typically, disc couplings can handle speeds up to 10,000 rpm. Flexible disc coupling, precision diaphragm coupling, od56mm flange type. Elpexs rubber disk coupling couplings products flender. Selecting the right shaft coupling can be the difference between a drive system that provides the required dynamic response and one that is catastrophic. Xg series high gain type couplings that meet requirements of the latest fast response servo motors, disktype xhw boasting the highest rigidity ever ms series having integrally structured slits best suited for stepping motors, cross joint xut. Flexible disc couplings minimize the misalignment forces on the connected equipment. The dodge coupling product line can offer a solution to almost any customer need.

It is not recommended that couplings be operated without coupling guards. The number of required disc pack and bolt kits depend on coupling type. Our compact steel couplings provide highly precise transmission of high torques especially under. Flexible disc coupling model in rotating shafts springerlink. 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. An extensive coupling lineup nbk offers is the fruit of experiences and expertise accumulated as a coupling manufacturer. The couplings consist of two disc packs, two flanges or hubs and one spacer.

Flexible disc couplings can be used in a wide variety of application from general industrial equipment to high speed precision machines. Easy to assess equipment misalignment torsionally rigid without. Hex socket head cap screws with ventilation hole high intensity stainless steel. Carrying capacity, and wide applicable scope, long service life, working temperature. Kd couplings transmit torque and provide for both angular and axial misalignment between shafts with a coupling comprised of shaft mounted hubs connected. Determine the required minimum coupling rating as shown below. Table 1 disc coupling series designation type description 4 bolt 6 bolt 8 bolt single disc standard w4. And almost all coupling manufacturers will assist in design specifications. Disc coupling replacement coupling corpcoupling corp. The disc coupling is usually less expensive in first cost than the diaphragm coupling. Couplings reactions inserted in misaligned shafts are assumed to behavior as a composition of harmonic components with frequencies of 1x up to 4x the rotor spin speed.

Floating shaft couplings are spacer style couplings which are designed to connect widely separated shafts. Series 71 eight bolt design uses our popular series 71 design with drop out center section assembly and tpack disc pack, we are able to provide significant. Ruland single disc couplings are comprised of two anodized aluminum hubs and one set of stainless steel disc springs. Before taking the disc packs off, first install one hub bolt through each disc pack and secure with a locknut. The disc coupling designs can handle speeds up to 8500 rpm, using either the single disc set style or double disc set style. Shaft diameters should be equal or less than published maximum bore of selected coupling. Flexible disc coupling, precision diaphragm coupling, od34mm straight type.

Nonscalloped disc to maximize the life of the coupling and the connected equipment, some manufacturers use a scalloped disc. They are one of the most versatile coupling designs and can be customized to meet the demands of almost every application. With reference to the configuration, the disc packs can be. A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. Couplings thomas flexible disc couplings norfolk bearings and. The survivor series disc pack couplings are a little different from most traditional disc pack couplings. The primary functions of all flexible couplings are. Rigid taper lock couplings in 8 sizes up to 10,500nm section 5. Disc coupling replacement coupling corporation of america is very familiar with many other coupling designs, including disc coupling replacement. Elpexs couplings are designed as a flangeshaft connection or shaftshaft connection as. If an application has a large distance between the driver and driven ends, the traditional design would be to incorporate a steel drive shaft between the two flexible. The flexible disc pack is the basis of all types and is alternately bolted to the flange or hub. If the coupling arrived assembled, the disc packs are still attached to the center ring.

The coupling shown in the diagram on the right above is suitable for use in cases subject to great radial loads. The voith turbo coupling is a hydrodynamic coupling based on foettingers principle. Poly disc flexible couplings use a nonmetallic disc molded of a polyurethane compound to transmit torque. The flexible disc coupling will be selected for direct connection to the drive plate of the prime mover the engines flywheel. Huco offers a wide variety of couplings for precision industrial and commercial applications worldwide. Disc couplings eliminates the need for lubrication and coupling maintenance coupling can be inspected without disassembly condition of disc packs can be inspected with a strobe light while the machine is running note.

Safe operation is critical to maintaining productivity. Flexible couplingscommon mistakes in assembly and maintenance. The hub 3 of the disc tyre 2 is secured to the machine with bolts 4. Arpex couplings are available as a catalog standard from 92 nm to 1450000 nm and are divided into various series. Dodge has manufactured couplings for over 100 years, earning a reputation for developing innovative products that lower customers total cost of ownership. Whether the need is an elastomeric or metallic design, dodge can provide a coupling with the potential. Final assembly with the coupling in good alignment, the bolts will fit through the holes in the flanges and the disc packs easily. All books are in clear copy here, and all files are secure so dont worry about it. They utilize thin stainless steel disc springs that allow for a substantial amount of shaft misalignment while remaining rigid under torsional loads. China nonlubricated disc coupling manufacturer suoda offers nonlubricated disc couplings, dt type disc couplings, equipped with joint pipe. Additional data can help verify application envelope of space, weight and wr2 considerations. Close tolerances and registered fits allow falk disc couplings to provide continuous highspeed service with virtually no maintenance. Vertical kits and vertical spacer kits might also be needed.

A method for calculating torsional stiffness of flexible disc coupling based on the study of its finite element model response under the action o f torque has been developed. Whether you are operating remotely in the cold, subzero of alaska, the dusty heat of the middle east, the corrosive environment of the north sea or in areas of high humidity, john cranes broad range of power transmission couplings for the global oil and gas industries are designed to operate safely and reliably. Two precision machined coupling hubs mounted to the disc pack by means. The coupling selection criteria is intended for the determination of the coupling and style only. In machinery, a device for providing a connection, readily broken and restored, between two adjacent rotating shafts. The single flexing coupling is for use in the case where shafts are supported by three bearings. Since then, our couplings have been widely accepted in japanese market under the bland name of formflex coupling and have acquired a high reputation. The couplings are certified and confirmed according to ec standard 949ec atex 95 as units of category 2g2d and thus suitable for the use in hazardous areas of zone 1, 2, 21 and 22. Its main components are two bladed wheels a pump wheel and a turbine wheel as well as an outer shell. Od56mm flange disc coupling, precision diaphragm coupling. A coupling may provide either a rigid or a flexible connection. Kopflex kd disc couplings metric ahr international. Com 01 inch disk couplings are designed to operate under. The single set of disc springs does not allow for any parallel misalignment.

Nov 28, 2011 disc couplings accommodate misalignment by using a flexible disc which is connected by alternating bolts to opposing flanges. A disc coupling is a high performance motion control servo coupling designed to be the torque transmitting element by connecting two shafts together while accommodating for shaft misalignment. Single and double disc styles are available with bore sizes ranging from 18 to 1 14 in the inch series and 3mm to 30mm in the metric series. A continuous ring disc pack for 6 screws coupling sizes 17 b sectional disc pack for 6 screws coupling sizes 811. The rexnord disc coupling portfolio provides customers with a range of solutions to choose from for any specific application, including low or high speeds, torques or misalignments. Other data in coupling type section of catalog can be used to verify that selected coupling will work in application.

Disc coupling packs are manufactured using high grade stainless steel aisi301, ensuring high strength, high endurance to fatigue, and resistance to most environmental conditions. A flexible disc coupling is fitted in place of a bearing to the drive end of the alternators main rotor. A disc coupling exists at least of 2 hubs and 1 disc pack and bolt kit. To connect the servomotor used in nc machine tools with the ball screw, an exceptional usage of the coupling as shown in the. It is the design specifications that allow the coupling to do its job, namely, transferring power from the driver to the driven, and serving as a weak link in cases of overload.

The skf disc coupling consists of two hubs and a laminated stainless steel disc pack secured by a series of fitted bolts retained by nylon insert lock nut nuts. For large, heavy duty applications, skf has large size couplings. Shaft sizes 14 1 and 38 btw 100 and 4000 inlb of torque up to 6,200 rpm. Kopflex kd disc couplings catalog tri state bearing. Falk disc couplings transmission products mardustrial. Falk disc couplings are a practical alternative to lubricated and elastomer couplings for many applications.

Dcs 0,5 250 nm single disc coupling data sheet download. Disc couplings view a pdf of this page the series 57 disc couplings with a compact, torque dense design and agma 9 balance outperform the omega or tyre style couplings in many applications at very competitive prices. Agn 232 generating set assembly coupling arrangements. F12 tb woods 8888296637 p1686tbw 1219 table of contents sureflex plus couplings utilize epdm, neoprene, and hytrel flexible elastomer sleeves to transmit torque and. The elastomer element compensates for shaft misalignment and absorbs impacts from the motor or work machines. Whether the need is an elastomeric or metallic design, dodge can provide a coupling with the potential to increase torque capacity, accommodate shaft misalignment, extend life, and put an end to unexpected downtime. Elastic flender couplings are mateable and easy to assemble. Very good information i need to make a flexible coupling for atlas copco air compresor 185cfm, those coupling are flexible coupling rubber attachemnt to plastic plate but alway the rubber fail in midle of the rubber disc, i need to hand made coupling more strong and more durable if yuo have any suggestion to me would be great. They deliver performance far superior to slotted beam couplings. A special heat treatment after molding, refines the physical properties of the disc that allow it to remain pliable to cushion shock loads and still have resistance to most common chemicals such as acids, alkalis and petroleum products.

Verify that the selected coupling will accommodate the shaft sizes or flywheel if engine mount, of driving and driven equipment. A flexible coupling is a device used to connect the ends of two shafts, transmit torque, and at the same time, accommodate slight misalignments which develop in. Formflex flexible disc couplings from johnson power in illinois offer high torsional stiffness allowing precise registration for high quality printing lineshaft application. Skf cou plings cover a wide range of coupling types, sizes and capacity ratings for many applica tions and factory environments. Disc failure, while it may be abrupt, will not disconnect the coupling if the bolts are capable of carrying the load in shear. Investigation of the torsional stiffness of flexible disc. Thomas flexible disc couplings cda magazine pdf book. Jun, 2014 improper coupling specification there are many different types of flexible couplings. Motor to centrifugal pump application in a water treatment plant with 500 hp motor at 700 rpm, with motor shaft 4. Coupling torque speed ofbores torsionally torsionally backlash type rangenm capacity mm soft rigid free universaljoints 10to580 lowtomedium 6to50 4. Types and uses of coupling devices engineering essay. The discflex mr coupling is 100% of steel construction and is therefore suitable for use in difficult environments, with temperatures up to 240c, in applications such as, high temperature liquid pumps. Disc type couplings steps in selecting torsionally rigid.

Our highprecision bush is inserted between the element and bolt, enabling it to be ued at extremely higher speeds in comparison to other couplings. Flexible disc coupling background view a pdf of this page when properly selected and applied, flexible disc couplings can run for a very long period of time with often described as an infinite life. Psc couplings designs and produces api610 api671 compliant dropout spacer disc couplings with industry leading torque density and ease of installation for compressors, pumps, and high torque applications. All coupling parts like hubs, spacers and flanges are manufactured from highgrade steel. Oct 03, 2014 the disc coupling is usually smaller in diameter than the diaphragm coupling. Falks onepiece discpacks assure simple maintenance and a nobacklash connection. Image 7 disc pack design comparison image 6 scalloped vs.

Some of the applications in which flexible disc couplings can be used are. This design allows them to be used in confined spaces where other styles of coupling may not be able to fit. With disc coupling product lines thomas, addax, euroflex and modulflex, we ensure an optimized solution for your specific need. Coupling size typeseries modifications distance between shaft ends c length hub bore 2506 xtsr71 b 9. This type of enginealternator coupling combination is torsionally rigid but still provides axial. These disc couplings meet the application needs of the worldwide mechanical power transmission market.