Varieties of Couplings
Group: Couplings
Report Tags:Couplingcouplingsdiaphragm couplingsdisc couplingsgear couplingsgrid couplingsjaw couplingsmaterial flexing couplingsmechanical flexing couplingsroller chain couplingssleeve couplingstire couplingstypes of couplings
Coupling fall into two primary categories: Materials Flexing and Mechanical Flexing. The material versatile varieties acquire their versatility from stretching or compressing a resilient material, such as rubber, or from the flexing of thin metallic discs or grid. Material flexing couplings never demand lubrication, together with the exception of grid couplings.

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

Materials Flexing Couplings
Materials flexing couplings ordinarily do not require lubrication and operate in shear or compression and therefore are in a position to accept angular, parallel and axial misalignment.

Examples of materials flexing couplings are jaw, sleeve, tire, disc, grid and diaphragm couplings.
– Jaw Couplings
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The jaw coupling is usually a material flexing coupling that transmits torque thru compression of an elastomeric spider insert positioned concerning two intermeshing jaws.
Flex element is typically manufactured from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Used for torsional dampening (vibration)
Very low torque, basic purpose applications
– Sleeve Coupling
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The sleeve coupling transmits lower to medium torque between linked products in shear by means of 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 1 or two piece layout.
Moderate misalignment
Torsional dampening (vibration)
Finish float with slight axial clearance
Minimal to medium torque, common goal applications
– Tire Coupling
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These couplings have a rubber or polyurethane component connected to two hubs. The rubber component transmits torque in shear.
Minimizes transmission of shock loads or vibration.
Large misalignment capacity
Effortless assembly w/o moving hubs or linked products
Reasonable to high pace operation
Wide selection of torque capacity
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted by flexing disc elements. It operates as a result of tension and compression of chorded segments on a frequent bolt circle bolted alternately in between the drive and driven side. These couplings are commonly comprised of two hubs, two discs packs, and a center member. Just one disc pack can accommodate angular and axial misalignment. Two disc packs are essential to accommodate parallel misalignment.
? Enables angular parallel and axial misalignment
? Is really a real limited end float design and style
? A zero backlash design and style
? High pace rating and stability
– Diaphragm Coupling
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Diaphragm couplings employ a single or possibly a series of plates or diaphragms for your versatile members. It transmits torque from the outdoors diameter of a flexible plate towards the within diameter, across the spool or spacer piece, then from inside to outdoors diameter. The deflection with the outer diameter relative on the inner diameter is what takes place when the diaphragm is topic to misalignment. One example is, axial displacement attempts stretch the diaphragm which effects in the mixture of elongations and bending from the diaphragm profile.
? Lets angular, parallel and substantial axial misalignments
? Used in large torque, substantial speed applications
Mechanical Flexing Couplings
The mechanical flexing couplings accept misalignment from rocking, rolling or sliding of metal surfaces. All metal mechanical flexing couplings call for lubrication.
Examples of mechanical flexing couplings are gear, grid and roller chain couplings.
– Gear Couplings
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Gear couplings transmit the highest quantity of torque along with the highest amount of torque inside the smallest diameter of any flexible coupling.

Just about every coupling consists of two hubs with crowned external gear teeth. The hubs mesh with two internally splined flanged sleeves which are bolted with each other. Gear couplings accommodate angular and axial misalignment from the rocking and sliding in the crowned gear teeth against the mating sleeve teeth. Parallel misalignment is accommodated by acquiring two adjacent hub/sleeve flex points. Gear couplings call for periodic lubrication based on the application. They can be sensitive to lubrication failures but when appropriately set up and maintained, these couplings possess a support existence of 3 to 5 years and in some instances they might last for many years.
– Grid Couplings
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Grid couplings include two radially slotted hubs that mesh by using a serpentine strip of spring steel the grid gives torsional damping and flexibility of an elastomer however the power of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from one hub on the other as a result of the rocking and sliding of a tapered grid in the mating hub slots. The grid cross section is usually tapered for greater hub get hold of and easier assembly. As there’s motion in between contacting hub and grid metal elements, lubrication is required.
– Roller Chain Coupling
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Roller Chain sort couplings consist of two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are made use of for lower to reasonable torque and velocity applications. The meshing with the sprocket teeth and chain transmits torque along with the related clearances accommodate angular, parallel and axial misalignment.

Chain couplings demand periodic lubrication depending on the application. The lubrication is generally brushed onto the chain as well as a cover is utilised to aid retain the lubrication about the coupling.
To learn additional about all the various kinds of couplings, visitthe EP Coupling Webpage.
Mechanical Energy Transmission ¡§C Shaft Coupling replacement technological innovation.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw form shaft couplings
EP Coupling is definitely the latest in shaft coupling style and design, beam, bellows and jaw couplings all get the job done at large speed but very low angle of misalignment.
Around the other end universal joints can deal with increased amounts of misalignment but at reduced speeds and constant servicing.
EP Coupling being a hybrid versatile coupling can do both.
Strengthening on current coupling technological innovation we offer several various versions which makes it possible for a 0 to 25?? operational angle of utilization
No inner components ¡§C No bearings to become consistently lubricated and substitute , this saves you money and time.
One Piece design and style usually means no broken yokes or hubs.
High speed- Runs at as much as 7000 RPM
Torsionally rigid at minimal angles of misalignment
Scalable ¡§C the EP unit may be scaled up or right down to suit individual customer requirements.?
Customizable ¡§C Have a unique form/function the spring/ball settings is often transformed to fit most applications.
Unique shaft forms or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being manufactured from two counter wound springs means it absorbs shock force without damage
Spring design will allow greater angle of usage without damaging parts?
ISO9001 2007 manufactured
The patented EP design and style enables for larger angle of utilization without deformation together with the torque transfer seen with Universal Joints, giving the performance of a Universal joint without the frequent servicing.
So how does it function? The design and style is quite simple, the sets of springs are counterwound so one particular tightens while the other loosens and visa versa.
This will allow the coupling to operate in both forward and reverse.
Its simplicity doesn?¡¥t finish there, the only thing while in the center of the coupling is often a single ball bearing this allows the coupling to pivot allowing for maximum versatility, this usually means no bearings.
Bearings are a continuous servicing 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 substitute.
One piece layout ¡§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 far better The flexible coupling is powered from the springs, but because it is usually a pair of springs it effectively is really a metal bar, add the ball bearing it turns into a versatile metal bar.
So this implies far more torque and still have the flex that would destroy a standard universal or constant velocity joint.
Substantial speed/low pace ¡§C Now flex coupling engineering is split into 2 major areas, large velocity, minimal torque, small angle of misalignment and lower pace, greater torque, greater angle of misalignment.
Distinct couplings applications, same product ¡§C Flexible/High velocity couplings are Beam couplings, elastomeric, bellows couplings and jaw type couplings which can run at high velocity 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 amount of torque these flex couplings can take care of is quite small.
EP?¡¥s flexible coupling remains torsionally rigid at reduce angles at higher speed, with far additional torque than say a standard beam coupling, with the added versatility if essential.
Lower speed couplings like universal joints can get the job done at high torque and larger degrees of misalignment but they have internal elements that need for being continuously maintained.
If not greasing for lubrication and bearing replacement as well as angles of misalignment they might perform at is restricted as well, as too much will lead to bearing failure.
Our flex coupling can meet the increased torque demands as well as the increased versatility while needing no upkeep as you would have to with using universal joints.
One particular product multiple uses. Why would you use various products if you didnt need to when a single product will do it all, a no maintenance, higher speed, large torque, greater angle of misalignment capable versatile coupling.
Three models and counting ¡§C To date we have 3 models the czep150, czep300 along with the czep500
czep150 is capable of handling 150ft lbs of torque and be applied at 25??.
czep300 is capable of handling 300 ft lbs of static torque and operate at angles of 25??
czep500 can manage 500ft lbs of static torque .
We are looking at what the market demands so bigger or smaller we will be adding extra as time goes on.
We have all the splines and keyways you need to fit your tools.
We want to get the job done with you, so speak to us and lets do the job with each other to solve your flexible coupling issues today.
Viscous coupling is filled with silicone and is not computer controlled. A series of plates with holes and slots turn from the silicone fluid. Some plates are attached to your front axle driveshaft and some are attached for the 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 pace. The silicone fluid resists the shear generated in it through the plates with differentiating speed, causing a torque transfer through the faster spinning axle for 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 among the plates increases due for the generated shear within the fluid, slippage is reduced, the rear wheel spin is reduced as well as the torque in the input shaft is transferred to your front.
A viscous coupling may be installed in two ways:
viscous coupling acting instead of the center differential
Viscous Coupling Acting Instead Of a Center Differential
In this case, in normal conditions, all energy is transferred to just 1 axle. One particular part in the viscous coupling is linked to your driving axle, another part is linked towards the driven axle. When driving wheels slip, viscous coupling locks and torque is transferred on the other axle. This is an automatic all wheel drive system.
The disadvantage of the viscous coupling is that it engages too slowly and permits 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 finish is engaged that has a slight delay, causing sudden change while in 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 sensitive to uneven tread wear on front and rear tires. This is why Volvo first reduced the pre-tensioning in 2000 and then 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 power to all wheels and lets them turn at unique speeds while cornering. When excessive wheelspin takes place on one with the axles, viscous coupling locks the differential and equalizes the speeds of both axles. Torque is transferred to wheels that have traction. This is often a full-time all wheel drive system.
Viscous coupling can also be integrated into the rear differential.
Precision Flexible Shaft Couplings
Clamping Precision Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings present far more holding energy than set screw couplings without marring the shaft.
Set Screw Precision Flexible 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 Versatile Shaft Couplings
Clamping Vibration-Damping Precision Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings provide additional holding electrical power than set screw couplings without marring the shaft.
Set Screw Vibration-Damping
Precision Flexible Shaft Couplings
Set Screw Vibration-Damping Precision Flexible Shaft Couplings
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 large parallel and angular shaft misalignment.
Servomotor Precision Flexible Shaft Couplings
Ready to handle substantial twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
High-Speed Precision Versatile Shaft Couplings
Having a bellows among two hubs, these couplings handle all sorts of misalignment and therefore are good for precision stepper and encoder motion-control applications.
High-Misalignment Precision
Versatile Shaft Couplings
High-Misalignment Precision Versatile Shaft Couplings
Specially designed ridges allow these bellows couplings to compensate for additional misalignment than other precision couplings?auseful for low-torque, high-precision applications for example instrumentation and motion control.
Electrically Isolating Servomotor
Precision Flexible Shaft Couplings
Electrically Isolating Servomotor Precision Versatile 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 Flexible Shaft Couplings
Connect shafts and ball screws to high-speed servomotors and stepper motors?athese shaft couplings manage four times additional velocity than standard servomotor couplings.
Versatile Shaft Couplings
Set Screw Flexible Shaft Couplings
Every single hub includes a set screw (unless noted), which bites into your shaft to hold the coupling in place.
Clamping Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings deliver extra holding energy than set screw couplings without marring the shaft.
High-Torque Set Screw Flexible 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 Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings provide additional holding electrical power than set screw couplings without marring the shaft.
Set Screw High-Parallel-Misalignment
Versatile Shaft Couplings
Set Screw High-Parallel-Misalignment Flexible Shaft Couplings
Just about every hub includes a set screw, which bites into your shaft to hold the coupling in place.
High-Angular-Misalignment Flexible Shaft Couplings
Also known as Schmidt couplings, these deal with increased angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re typically applied with conveyor rollers and roller feeds in printing and packaging machines.
Machinable-Bore Flexible Shaft Couplings
Customize the bore of these versatile couplings to align uncommon shaft sizes as well as shafts that have become undersized from wear or oversized from coatings.
Shock-Absorbing Flexible 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 towards the problem.
Cleaned and Bagged Versatile
Heat-Resistant Shaft Couplings
Cleaned and Bagged Flexible Heat-Resistant Shaft Couplings
Flexible Shaft Couplings for Continuous Motion
High-Speed Vibration-Damping
Flexible 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 versatile tire on these couplings safeguards components on your shafts by reducing vibration and shock.
High-Torque Flexible Shaft Couplings
By using a rugged roller-chain layout, these couplings give excellent torque and angular misalignment capacities.
Ultra-High-Torque Flexible Shaft Couplings
Using a rigid gear style and design, these steel couplings transmit much more torque than other couplings on the same size.
Lightweight Flexible Shaft Couplings
Produced with lightweight nylon sleeves, these gear couplings call for less energy to move than other high-torque flexible couplings. They compensate for parallel, angular, and axial misalignment.
Noncontact Magnetic Shaft Couplings
Magnetic force transfers torque from one half of these couplings to the other; there?¡¥s no contact concerning the elements, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.