Varieties of Couplings
Group: Couplings
Article Tags:Couplingcouplingsdiaphragm couplingsdisc couplingsgear couplingsgrid couplingsjaw couplingsmaterial flexing couplingsmechanical flexing couplingsroller chain couplingssleeve couplingstire couplingstypes of couplings
Coupling fall into two most important classes: Materials Flexing and Mechanical Flexing. The material flexible varieties obtain their flexibility from stretching or compressing a resilient material, including rubber, or from your flexing of thin metallic discs or grid. Materials flexing couplings never need lubrication, using 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.

Material Flexing Couplings
Materials flexing couplings usually tend not to require lubrication and operate in shear or compression and are capable 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 a material flexing coupling that transmits torque thru compression of an elastomeric spider insert placed concerning two intermeshing jaws.
Flex component is usually made from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Used for torsional dampening (vibration)
Lower torque, general purpose applications
– Sleeve Coupling
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The sleeve coupling transmits low to medium torque amongst connected gear in shear through an elastomeric insert with male splines that mate with female hub splines. The insert material is usually EPDM, Neoprene or Hytrel and the insert could be a a single or two piece style.
Moderate misalignment
Torsional dampening (vibration)
Finish float with slight axial clearance
Lower to medium torque, general goal applications
– Tire Coupling
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These couplings have a rubber or polyurethane component linked to two hubs. The rubber element transmits torque in shear.
Reduces transmission of shock loads or vibration.
High misalignment capacity
Straightforward assembly w/o moving hubs or connected products
Moderate to large velocity operation
Broad choice of torque capacity
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted as a result of flexing disc elements. It operates through stress and compression of chorded segments on the typical bolt circle bolted alternately amongst the drive and driven side. These couplings are ordinarily comprised of two hubs, two discs packs, in addition to a center member. Just one disc pack can accommodate angular and axial misalignment. Two disc packs are required to accommodate parallel misalignment.
? Permits angular parallel and axial misalignment
? Is actually a correct restricted end float design
? A zero backlash style
? Substantial speed rating and balance
– Diaphragm Coupling
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Diaphragm couplings make use of just one or a series of plates or diaphragms for that versatile members. It transmits torque in the outside diameter of the flexible plate for the within diameter, throughout the spool or spacer piece, and after that from within to outside diameter. The deflection of the outer diameter relative for the inner diameter is what takes place once the diaphragm is subject to misalignment. For example, axial displacement attempts stretch the diaphragm which final results in a combination of elongations and bending with the diaphragm profile.
? Enables angular, parallel and higher axial misalignments
? Used in large 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 demand 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 also the highest sum of torque in 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 are bolted collectively. Gear couplings accommodate angular and axial misalignment through the rocking and sliding on the crowned gear teeth towards the mating sleeve teeth. Parallel misalignment is accommodated by having two adjacent hub/sleeve flex points. Gear couplings call for periodic lubrication based on the application. These are delicate to lubrication failures but when thoroughly installed and maintained, these couplings have a services life of 3 to 5 many years and in some instances they will final for decades.
– Grid Couplings
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Grid couplings include two radially slotted hubs that mesh with a serpentine strip of spring steel the grid supplies torsional damping and versatility of an elastomer however the power of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from a single hub to your other by means of the rocking and sliding of a tapered grid during the mating hub slots. The grid cross section is generally tapered for superior hub contact and much easier assembly. As there’s motion between contacting hub and grid metal components, lubrication is needed.
– Roller Chain Coupling
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Roller Chain type couplings include two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are used for low to moderate torque and speed applications. The meshing on the sprocket teeth and chain transmits torque as well as associated clearances accommodate angular, parallel and axial misalignment.

Chain couplings require periodic lubrication depending on the application. The lubrication is commonly brushed onto the chain plus a cover is utilized to help continue to keep the lubrication over the coupling.
To find out far more about all the various kinds of couplings, visitthe EP Coupling Webpage.
Mechanical Electrical power Transmission ¡§C Shaft Coupling substitute technological innovation.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw variety shaft couplings
EP Coupling could be the hottest in shaft coupling style, beam, bellows and jaw couplings all get the job done at large speed but very low angle of misalignment.
Over the other finish universal joints are able to take care of greater amounts of misalignment but at decrease speeds and consistent maintenance.
EP Coupling being a hybrid versatile coupling can do both.
Improving on present coupling technological innovation we give quite a few various versions which permits a 0 to 25?? operational angle of utilization
No internal elements ¡§C No bearings to be consistently lubricated and exchange , this saves you time and money.
One particular Piece style and design suggests no broken yokes or hubs.
High speed- Runs at up to 7000 RPM
Torsionally rigid at minimal angles of misalignment
Scalable ¡§C the EP unit may be scaled up or down to suit person client demands.?
Customizable ¡§C Possess a unique form/function the spring/ball settings could be altered to match most applications.
Different shaft forms or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being produced from two counter wound springs signifies it absorbs shock force without damage
Spring design enables greater angle of utilization without damaging parts?
ISO9001 2007 manufactured
The patented EP layout enables for larger angle of usage without deformation with the torque transfer seen with Universal Joints, giving the performance of a Universal joint without the continuous servicing.
So how does it get the job done? The style and design is quite simple, the sets of springs are counterwound so a single tightens while the other loosens and visa versa.
This lets the coupling to work in both forward and reverse.
Its simplicity doesn?¡¥t end there, the only thing in the center on the coupling is a single ball bearing this makes it possible for the coupling to pivot allowing for maximum flexibility, this indicates no bearings.
Bearings are a constant upkeep issue, they cannot run in harsh environments like water, mud, sand, dust and dirt as any intrusion by any of those components leads to rapid failure.
So no bearings means no continuous upkeep or worse replacement.
One piece style and design ¡§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 superior 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 means extra torque and still have the flex that would destroy a standard universal or frequent velocity joint.
Higher speed/low speed ¡§C Now flex coupling technology is split into 2 principal areas, higher velocity, reduced torque, small angle of misalignment and reduced velocity, larger torque, increased angle of misalignment.
Different couplings applications, same product ¡§C Flexible/High speed couplings are Beam couplings, elastomeric, bellows couplings and jaw form couplings which can run at large 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 handle is quite small.
EP?¡¥s versatile coupling remains torsionally rigid at decrease angles at high pace, with far extra torque than say a standard beam coupling, together with the added versatility if required.
Reduce pace couplings like universal joints can perform at large torque and larger degrees of misalignment but they have internal components that need to become frequently maintained.
If not greasing for lubrication and bearing replacement and the angles of misalignment they’re able to perform at is restricted as well, as too much will lead to bearing failure.
Our flex coupling can meet the greater torque demands plus the increased flexibility while needing no servicing as you would have to with using universal joints.
A single product multiple uses. Why would you use various products if you didnt need to when 1 product will do it all, a no servicing, higher pace, large torque, increased angle of misalignment capable flexible coupling.
Three models and counting ¡§C To date we have three models the czep150, czep300 and also the czep500
czep150 is capable of handling 150ft lbs of torque and be used 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 match your gear.
We want to work with you, so make contact with us and lets function together 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 within the silicone fluid. Some plates are attached for the front axle driveshaft and some are attached towards 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 velocity. The silicone fluid resists the shear generated in it through the plates with differentiating speed, causing a torque transfer from your faster spinning axle to the slower spinning axle. Therefore, slight velocity difference is needed for torque transfer.
If the rear wheels and driveshaft are slipping and turning faster than the front, friction between the plates increases due towards the generated shear while in the fluid, slippage is reduced, the rear wheel spin is reduced and the torque through the input shaft is transferred to your front.
A viscous coupling could be installed in two ways:
viscous coupling acting instead of the center differential
Viscous Coupling Acting Instead Of the Center Differential
In this case, in normal conditions, all energy is transferred to just one particular axle. One part from the viscous coupling is linked on the driving axle, another part is linked on 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 enables 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 by using a slight delay, causing sudden change 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 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 unique speeds while cornering. When excessive wheelspin takes place on a single of the axles, viscous coupling locks the differential and equalizes the speeds of each 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 Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings present 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 Versatile Shaft Couplings
Clamping Vibration-Damping Precision Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings give extra holding energy than set screw couplings without marring the shaft.
Set Screw Vibration-Damping
Precision Flexible Shaft Couplings
Set Screw Vibration-Damping Precision Versatile Shaft Couplings
Each hub includes a set screw, which bites into your shaft to hold the coupling in place.
High-Misalignment Vibration-Damping
Precision Flexible Shaft Couplings
High-Misalignment Vibration-Damping Precision Versatile Shaft Couplings
Also called double-loop couplings, these have a versatile center that reduces vibration and compensates for large parallel and angular shaft misalignment.
Servomotor Precision Flexible Shaft Couplings
Capable to take care of large twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
High-Speed Precision Flexible Shaft Couplings
That has a bellows between two hubs, these couplings take care of all types of misalignment and are good for precision stepper and encoder motion-control applications.
High-Misalignment Precision
Flexible Shaft Couplings
High-Misalignment Precision Flexible Shaft Couplings
Specially designed ridges allow these bellows couplings to compensate for far more misalignment than other precision couplings?auseful for low-torque, high-precision applications which include 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 handle four times much more velocity than standard servomotor couplings.
Versatile Shaft Couplings
Set Screw Flexible Shaft Couplings
Each and every 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 additional holding electrical power 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 Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings deliver much more 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 Versatile Shaft Couplings
Also known as Schmidt couplings, these manage higher angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re normally employed 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 Versatile Shaft Couplings
A strip of flexible 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 inside the rubber will set off a metal detector, alerting you to your problem.
Cleaned and Bagged Versatile
Heat-Resistant Shaft Couplings
Cleaned and Bagged Versatile Heat-Resistant Shaft Couplings
Versatile Shaft Couplings for Continuous Motion
High-Speed Vibration-Damping
Flexible Shaft Couplings
High-Speed Vibration-Damping Flexible 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 elements on your shafts by reducing vibration and shock.
High-Torque Flexible Shaft Couplings
By using a rugged roller-chain style and design, these couplings provide excellent torque and angular misalignment capacities.
Ultra-High-Torque Versatile Shaft Couplings
Which has a rigid gear layout, these steel couplings transmit more torque than other couplings of the same size.
Lightweight Flexible Shaft Couplings
Made with lightweight nylon sleeves, these gear couplings need 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 1 half of these couplings on the other; there?¡¥s no get hold of concerning the components, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.