Varieties of Couplings
Category: Couplings
Article Tags:Couplingcouplingsdiaphragm couplingsdisc couplingsgear couplingsgrid couplingsjaw couplingsmaterial flexing couplingsmechanical flexing couplingsroller chain couplingssleeve couplingstire couplingstypes of couplings
Coupling fall into two key classes: Material Flexing and Mechanical Flexing. The material flexible forms get their versatility from stretching or compressing a resilient materials, for instance rubber, or from your flexing of thin metallic discs or grid. Materials flexing couplings will not require lubrication, with all the exception of grid couplings.

The mechanical flexing couplings accept misalignment from rocking, rolling or sliding of metal surfaces. All metal mechanical flexing couplings demand lubrication.

Materials Flexing Couplings
Materials flexing couplings commonly tend not to require lubrication and operate in shear or compression and therefore are able to accept angular, parallel and axial misalignment.

Examples of material flexing couplings are jaw, sleeve, tire, disc, grid and diaphragm couplings.
– Jaw Couplings
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The jaw coupling is usually a materials flexing coupling that transmits torque thru compression of an elastomeric spider insert positioned between two intermeshing jaws.
Flex component is normally made from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Utilised for torsional dampening (vibration)
Low torque, general objective applications
– Sleeve Coupling
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The sleeve coupling transmits minimal to medium torque involving connected products in shear by an elastomeric insert with male splines that mate with female hub splines. The insert materials is typically EPDM, Neoprene or Hytrel as well as insert could be a one or two piece style.
Moderate misalignment
Torsional dampening (vibration)
End float with slight axial clearance
Minimal to medium torque, standard function applications
– Tire Coupling
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These couplings possess a rubber or polyurethane component connected to two hubs. The rubber element transmits torque in shear.
Reduces transmission of shock loads or vibration.
High misalignment capability
Uncomplicated assembly w/o moving hubs or linked equipment
Moderate to high speed operation
Wide choice of torque capability
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted by way of flexing disc aspects. It operates through tension and compression of chorded segments on the frequent bolt circle bolted alternately concerning the drive and driven side. These couplings are generally comprised of two hubs, two discs packs, along with a center member. A single disc pack can accommodate angular and axial misalignment. Two disc packs are desired to accommodate parallel misalignment.
? Permits angular parallel and axial misalignment
? Is a genuine limited end float design
? A zero backlash design
? Substantial pace rating and balance
– Diaphragm Coupling
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Diaphragm couplings use a single or possibly a series of plates or diaphragms for that flexible members. It transmits torque from the outside diameter of the flexible plate towards the within diameter, across the spool or spacer piece, after which from within to outdoors diameter. The deflection of your outer diameter relative to your inner diameter is what occurs once the diaphragm is topic to misalignment. One example is, axial displacement attempts stretch the diaphragm which results in the mixture of elongations and bending with the diaphragm profile.
? Allows angular, parallel and large axial misalignments
? Utilized in substantial torque, large speed applications
Mechanical Flexing Couplings
The mechanical flexing couplings accept misalignment from rocking, rolling or sliding of metal surfaces. All metal mechanical flexing couplings need lubrication.
Examples of mechanical flexing couplings are gear, grid and roller chain couplings.
– Gear Couplings
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Gear couplings transmit the highest amount of torque and the highest amount of torque from the smallest diameter of any versatile coupling.

Just about every coupling consists of two hubs with crowned external gear teeth. The hubs mesh with two internally splined flanged sleeves which can be bolted with each other. Gear couplings accommodate angular and axial misalignment by the rocking and sliding with the crowned gear teeth against the mating sleeve teeth. Parallel misalignment is accommodated by owning two adjacent hub/sleeve flex factors. Gear couplings require periodic lubrication depending on the application. They can be sensitive to lubrication failures but if appropriately put in and maintained, these couplings have a services life of three to 5 many years and in some instances they’re able to last for decades.
– Grid Couplings
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Grid couplings consist of 2 radially slotted hubs that mesh having a serpentine strip of spring steel the grid supplies torsional damping and versatility of an elastomer but the strength of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from one particular hub on the other by the rocking and sliding of the tapered grid within the mating hub slots. The grid cross area is usually tapered for superior hub get hold of and simpler assembly. As there’s motion involving contacting hub and grid metal components, lubrication is needed.
– Roller Chain Coupling
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Roller Chain variety couplings include two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are applied for lower to reasonable torque and speed applications. The meshing in the sprocket teeth and chain transmits torque as well as the associated clearances accommodate angular, parallel and axial misalignment.

Chain couplings need periodic lubrication depending on the application. The lubrication is generally brushed onto the chain and also a cover is applied to assist keep the lubrication within the coupling.
To learn extra about each of the various kinds of couplings, visitthe EP Coupling Webpage.
Mechanical Energy Transmission ¡§C Shaft Coupling substitute technological innovation.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw form shaft couplings
EP Coupling may be the most up-to-date in shaft coupling style, beam, bellows and jaw couplings all function at substantial velocity but low angle of misalignment.
To the other end universal joints can handle greater quantities of misalignment but at reduce speeds and consistent upkeep.
EP Coupling being a hybrid versatile coupling can do both.
Strengthening on present coupling technology we deliver numerous diverse versions which lets a 0 to 25?? operational angle of utilization
No internal components ¡§C No bearings for being consistently lubricated and replace , this saves you time and money.
One particular Piece style and design indicates no broken yokes or hubs.
Higher speed- Runs at up to 7000 RPM
Torsionally rigid at very low angles of misalignment
Scalable ¡§C the EP unit is often scaled up or right down to suit personal purchaser demands.?
Customizable ¡§C Possess a precise form/function the spring/ball settings can be modified to match most applications.
Distinctive shaft forms or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being manufactured from two counter wound springs signifies it absorbs shock force without damage
Spring design makes it possible for greater angle of usage without damaging components?
ISO9001 2007 manufactured
The patented EP style and design makes it possible for for larger angle of usage without deformation together with the torque transfer seen with Universal Joints, giving the performance of the Universal joint without the frequent maintenance.
So how does it get the job done? The layout is quite simple, the sets of springs are counterwound so a single tightens while another loosens and visa versa.
This allows the coupling to function in each forward and reverse.
Its simplicity doesn?¡¥t end there, the only thing inside the center of the coupling is actually a single ball bearing this lets the coupling to pivot allowing for maximum flexibility, this suggests no bearings.
Bearings are a consistent upkeep issue, they cannot run in harsh environments like water, mud, sand, dust and dirt as any intrusion by any of those elements leads to rapid failure.
So no bearings usually means no continuous maintenance or worse replacement.
1 piece style ¡§C As the product is just hubs and springs the things that can go wrong are greatly reduced, so no cracked yokes or broken propeller joints, no worn out bearings.
Torque ¡§C the bigger the greater The versatile coupling is powered through the springs, but because it is really a pair of springs it effectively is really a metal bar, add the ball bearing it turns into a versatile metal bar.
So this usually means far more torque and still have the flex that would destroy a standard universal or constant velocity joint.
Higher speed/low speed ¡§C Now flex coupling technology is split into two key areas, large speed, low torque, small angle of misalignment and lower speed, higher torque, increased angle of misalignment.
Unique couplings applications, same product ¡§C Flexible/High velocity couplings are Beam couplings, elastomeric, bellows couplings and jaw sort couplings which can run at substantial pace maintain torsional rigidity but traditionally can only run at a few degrees of misalignment before starting to wear out.
Add to that because of that small misalignment angles , the volume of torque these flex couplings can handle is quite small.
EP?¡¥s flexible coupling remains torsionally rigid at decrease angles at higher velocity, with far far more torque than say a standard beam coupling, using the added flexibility if desired.
Reduce speed couplings like universal joints can do the job at higher torque and larger degrees of misalignment but they have internal components that need to be frequently maintained.
If not greasing for lubrication and bearing substitute and the angles of misalignment they could get the job done at is limited as well, as too much will lead to bearing failure.
Our flex coupling can meet the larger torque demands and the increased versatility while needing no servicing as you would have to with using universal joints.
1 product multiple uses. Why would you use different products if you didnt need to when one product will do it all, a no servicing, higher speed, large torque, higher angle of misalignment capable versatile coupling.
Three models and counting ¡§C To date we have three models the czep150, czep300 along with the czep500
czep150 is capable of handling 150ft lbs of torque and be made use of at 25??.
czep300 is capable of handling 300 ft lbs of static torque and operate at angles of 25??
czep500 can take care of 500ft lbs of static torque .
We are looking at what the market demands so bigger or smaller we will be adding much more as time goes on.
We have all the splines and keyways you need to match your tools.
We want to get the job done with you, so contact us and lets do the job with each other to solve your versatile coupling issues today.
Viscous coupling is filled with silicone and is not computer controlled. A series of plates with holes and slots turn in the silicone fluid. Some plates are attached for the front axle driveshaft and some are attached to your rear axle driveshaft. Normally the plates turn at the same rate without relative motion. The silicone fluid becomes very viscous due to it’s viscoelasticity as soon as the plates rotate at differentiating velocity. The silicone fluid resists the shear generated in it from the plates with differentiating speed, causing a torque transfer in the faster spinning axle towards the slower spinning axle. Therefore, slight pace difference is required for torque transfer.
If the rear wheels and driveshaft are slipping and turning faster than the front, friction between the plates increases due to the generated shear in the fluid, slippage is reduced, the rear wheel spin is reduced plus the torque through the input shaft is transferred to your front.
A viscous coupling may be set up in two ways:
viscous coupling acting instead of a center differential
Viscous Coupling Acting Instead Of a Center Differential
In this case, in normal conditions, all electrical power is transferred to just one axle. One particular part on the viscous coupling is connected towards the driving axle, another part is linked towards the driven axle. When driving wheels slip, viscous coupling locks and torque is transferred towards the other axle. This is an automatic all wheel drive system.
The disadvantage of the viscous coupling is that it engages too slowly and lets for excessive wheelspin before transferring torque to another wheels. This is especially critical in automatic all wheel drive systems – when cornering under acceleration, the rear end is engaged using a slight delay, causing sudden change within the car’s behaviour fron understeer to oversteer. Also, when taking-off in sand, front wheels can become bogged down before all wheel drive is engaged.
In an attempt to reduce the coupling’s activation time, czh always transfers 5% of torque to rear wheels (this is achieved by rear driveshaft rotating slower than front driveshaft in normal conditions, causing viscous fluid warm-up and slight solidification).
At the same time, pre-tensioning the coupling too much leads to undesireable transmission wind-up and makes the system too delicate to uneven tread wear on front and rear tires. This is why Volvo first reduced the pre-tensioning in 2000 and after that replaced the viscous coupling with epdex clutch on their all wheel drive vehicles in model year 2003
Viscous Coupling Integrated Into The Center Differential
In this case, all wheels are powered at all times. Viscous coupling is integrated into the center differential. Central differential distributes electrical power to all wheels and lets them turn at distinctive speeds while cornering. When excessive wheelspin happens on one in the axles, viscous coupling locks the differential and equalizes the speeds of both axles. Torque is transferred to wheels that have traction. This is really a full-time all wheel drive system.
Viscous coupling can also be integrated into the rear differential.
Precision Versatile Shaft Couplings
Clamping Precision Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings supply much more holding energy than set screw couplings without marring the shaft.
Set Screw Precision Versatile Shaft Couplings
Tighten the set screws to fasten these couplings to your shaft. Set screws bite into the shaft to hold the couplings in place.
Clamping Vibration-Damping
Precision Flexible Shaft Couplings
Clamping Vibration-Damping Precision Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings deliver additional holding electrical power than set screw couplings without marring the shaft.
Set Screw Vibration-Damping
Precision Versatile Shaft Couplings
Set Screw Vibration-Damping Precision Flexible Shaft Couplings
Each and every hub includes a set screw, which bites into your shaft to hold the coupling in place.
High-Misalignment Vibration-Damping
Precision Versatile Shaft Couplings
High-Misalignment Vibration-Damping Precision Versatile Shaft Couplings
Also called double-loop couplings, these possess a flexible center that reduces vibration and compensates for substantial parallel and angular shaft misalignment.
Servomotor Precision Versatile Shaft Couplings
In a position to take care of substantial twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
High-Speed Precision Flexible Shaft Couplings
Which has a bellows amongst two hubs, these couplings manage all forms of misalignment and therefore are good for precision stepper and encoder motion-control applications.
High-Misalignment Precision
Versatile Shaft Couplings
High-Misalignment Precision Flexible Shaft Couplings
Specially designed ridges allow these bellows couplings to compensate for a lot more misalignment than other precision couplings?auseful for low-torque, high-precision applications including instrumentation and motion control.
Electrically Isolating Servomotor
Precision Flexible Shaft Couplings
Electrically Isolating Servomotor Precision Flexible Shaft Couplings
An acetal plastic spacer at the center of these couplings insulates bearings, encoders, and other shaft components from stray electric current. Use them with servomotors, which sometimes generate current that travels down the shaft and can damage circuit boards, interfere with readings, and cause wear on bearing raceways.
High-Speed Servomotor Precision
Versatile Shaft Couplings
High-Speed Servomotor Precision Versatile Shaft Couplings
Connect shafts and ball screws to high-speed servomotors and stepper motors?athese shaft couplings manage four times far more speed than standard servomotor couplings.
Flexible Shaft Couplings
Set Screw Flexible Shaft Couplings
Just about every hub includes a set screw (unless noted), which bites into your shaft to hold the coupling in place.
Clamping Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings give extra holding energy than set screw couplings without marring the shaft.
High-Torque Set Screw Versatile Shaft Couplings
The thick split spider on these couplings can take on twice as much torque as standard spiders, extending the daily life of bearings, seals, and motors.
Clamping High-Parallel-Misalignment
Versatile Shaft Couplings
Clamping High-Parallel-Misalignment Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings present much more holding power than set screw couplings without marring the shaft.
Set Screw High-Parallel-Misalignment
Versatile Shaft Couplings
Set Screw High-Parallel-Misalignment Versatile Shaft Couplings
Each hub includes a set screw, which bites into your shaft to hold the coupling in place.
High-Angular-Misalignment Versatile Shaft Couplings
Also known as Schmidt couplings, these handle larger angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re commonly employed with conveyor rollers and roller feeds in printing and packaging machines.
Machinable-Bore Versatile Shaft Couplings
Customize the bore of these flexible couplings to align uncommon shaft sizes as well as shafts that have become undersized from wear or oversized from coatings.
Shock-Absorbing Versatile Shaft Couplings
A strip of versatile spring steel wraps around the teeth of the two hubs to absorb sharp, momentary load increases that can come from motor startups, emergency braking, or sudden impact with hard objects.
Metal-Detectable Versatile Shaft Couplings
Designed for use in food-processing applications, where a fraying spider could contaminate a batch, these couplings have a metal-detector-grade rubber spider. Small pieces of metal within the rubber will set off a metal detector, alerting you to your problem.
Cleaned and Bagged Flexible
Heat-Resistant Shaft Couplings
Cleaned and Bagged Versatile Heat-Resistant Shaft Couplings
Flexible Shaft Couplings for Continuous Motion
High-Speed Vibration-Damping
Versatile Shaft Couplings
High-Speed Vibration-Damping Versatile Shaft Couplings
Use these gear-shaped couplings for high-speed and high-torque applications.
Vibration-Damping Versatile Shaft Couplings
A flexible tire on these couplings safeguards components on your shafts by reducing vibration and shock.
High-Torque Versatile Shaft Couplings
By using a rugged roller-chain design, these couplings provide excellent torque and angular misalignment capacities.
Ultra-High-Torque Versatile Shaft Couplings
Which has a rigid gear style, these steel couplings transmit a lot more torque than other couplings from the same size.
Lightweight Versatile Shaft Couplings
Created with lightweight nylon sleeves, these gear couplings demand less energy to move than other high-torque versatile couplings. They compensate for parallel, angular, and axial misalignment.
Noncontact Magnetic Shaft Couplings
Magnetic force transfers torque from one particular half of these couplings for the other; there?¡¥s no speak to involving the parts, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.