Kinds of Couplings
Group: Couplings
Write-up Tags:Couplingcouplingsdiaphragm couplingsdisc couplingsgear couplingsgrid couplingsjaw couplingsmaterial flexing couplingsmechanical flexing couplingsroller chain couplingssleeve couplingstire couplingstypes of couplings
Coupling fall into two major classes: Materials Flexing and Mechanical Flexing. The materials versatile sorts receive their versatility from stretching or compressing a resilient materials, such as rubber, or in the flexing of thin metallic discs or grid. Materials flexing couplings never call for lubrication, 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 demand lubrication.

Material Flexing Couplings
Material flexing couplings typically will not call for lubrication and operate in shear or compression and are in a position 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 can be a materials flexing coupling that transmits torque thru compression of an elastomeric spider insert placed amongst two intermeshing jaws.
Flex component is commonly made from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Utilised for torsional dampening (vibration)
Very low torque, basic goal applications
– Sleeve Coupling
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The sleeve coupling transmits low to medium torque between linked tools in shear as a result of an elastomeric insert with male splines that mate with female hub splines. The insert materials is generally EPDM, Neoprene or Hytrel as well as insert can be a a single or two piece layout.
Moderate misalignment
Torsional dampening (vibration)
End float with slight axial clearance
Very low to medium torque, general objective applications
– Tire Coupling
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These couplings have a rubber or polyurethane component linked to two hubs. The rubber component transmits torque in shear.
Decreases transmission of shock loads or vibration.
Large misalignment capability
Quick assembly w/o moving hubs or connected products
Moderate to higher speed operation
Wide variety of torque capability
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted as a result of flexing disc components. It operates through tension and compression of chorded segments on the common bolt circle bolted alternately among the drive and driven side. These couplings are generally comprised of two hubs, two discs packs, as well as a center member. A single disc pack can accommodate angular and axial misalignment. Two disc packs are desired to accommodate parallel misalignment.
? Will allow angular parallel and axial misalignment
? Is usually a true constrained finish float layout
? A zero backlash style
? Substantial pace rating and stability
– Diaphragm Coupling
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Diaphragm couplings make use of just one or even a series of plates or diaphragms for the flexible members. It transmits torque through the outside diameter of a versatile plate to the inside diameter, across the spool or spacer piece, and then from within to outdoors diameter. The deflection of the outer diameter relative for the inner diameter is what takes place once the diaphragm is topic to misalignment. Such as, axial displacement attempts stretch the diaphragm which effects in the combination of elongations and bending of the diaphragm profile.
? Will allow angular, parallel and substantial axial misalignments
? Used in high 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 volume of torque and the highest sum of torque while in the smallest diameter of any versatile coupling.

Just about every coupling includes two hubs with crowned external gear teeth. The hubs mesh with two internally splined flanged sleeves which can be bolted collectively. Gear couplings accommodate angular and axial misalignment by the rocking and sliding in the crowned gear teeth towards the mating sleeve teeth. Parallel misalignment is accommodated by acquiring two adjacent hub/sleeve flex points. Gear couplings require periodic lubrication depending on the application. They’re sensitive to lubrication failures but if properly put in and maintained, these couplings have a services daily life of three to 5 years and in some cases they can final for many years.
– Grid Couplings
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Grid couplings consist of two radially slotted hubs that mesh with a serpentine strip of spring steel the grid offers torsional damping and flexibility of an elastomer however the strength of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from 1 hub to the other by the rocking and sliding of a tapered grid from the mating hub slots. The grid cross part is generally tapered for improved hub get in touch with and easier assembly. As there is motion between contacting hub and grid metal parts, lubrication is required.
– Roller Chain Coupling
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Roller Chain sort couplings include two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are utilised for minimal to reasonable torque and speed applications. The meshing in the sprocket teeth and chain transmits torque plus the connected clearances accommodate angular, parallel and axial misalignment.

Chain couplings call for periodic lubrication depending on the application. The lubrication is typically brushed onto the chain and also a cover is applied to assist retain the lubrication over the coupling.
To learn additional about all the various kinds of couplings, visitthe EP Coupling Web page.
Mechanical Energy Transmission ¡§C Shaft Coupling substitute technology.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw kind shaft couplings
EP Coupling may be the hottest in shaft coupling style, beam, bellows and jaw couplings all function at large pace but lower angle of misalignment.
Within the other finish universal joints are able to handle increased amounts of misalignment but at reduce speeds and frequent upkeep.
EP Coupling like a hybrid versatile coupling can do the two.
Enhancing on current coupling technology we provide quite a few unique versions which allows a 0 to 25?? operational angle of utilization
No inner elements ¡§C No bearings to be continually lubricated and exchange , this saves you time and money.
A single Piece design and style usually means no broken yokes or hubs.
Large speed- Runs at as much as 7000 RPM
Torsionally rigid at lower angles of misalignment
Scalable ¡§C the EP unit is usually scaled up or right down to suit personal customer needs.?
Customizable ¡§C Possess a unique form/function the spring/ball settings is usually changed to match most applications.
Distinct shaft types or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being made from two counter wound springs suggests it absorbs shock force without damage
Spring layout enables greater angle of usage without damaging components?
ISO9001 2007 manufactured
The patented EP layout makes it possible for for larger angle of utilization without deformation with all the torque transfer seen with Universal Joints, giving the performance of the Universal joint without the continual upkeep.
So how does it get the job done? The design is quite simple, the sets of springs are counterwound so a single tightens while another loosens and visa versa.
This lets the coupling to operate in the two forward and reverse.
Its simplicity doesn?¡¥t finish there, the only thing in the center on the coupling is a single ball bearing this allows the coupling to pivot allowing for maximum versatility, this signifies no bearings.
Bearings are a frequent servicing issue, they cannot run in harsh environments like water, mud, sand, dust and dirt as any intrusion by any of those factors leads to rapid failure.
So no bearings usually means no constant servicing or worse substitute.
1 piece design and 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 improved 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 additional torque and still have the flex that would destroy a standard universal or frequent velocity joint.
Large speed/low velocity ¡§C Now flex coupling engineering is split into two most important areas, higher velocity, low torque, small angle of misalignment and reduce speed, greater torque, increased angle of misalignment.
Unique couplings applications, same product ¡§C Flexible/High speed couplings are Beam couplings, elastomeric, bellows couplings and jaw kind couplings which can run at higher 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 quantity of torque these flex couplings can handle is quite small.
EP?¡¥s flexible coupling remains torsionally rigid at decrease angles at high pace, with far far more torque than say a standard beam coupling, using the added flexibility if desired.
Decrease velocity couplings like universal joints can work at large torque and larger degrees of misalignment but they have inner parts that need to become frequently maintained.
If not greasing for lubrication and bearing substitute as well as angles of misalignment they might do the job at is constrained as well, as too much will lead to bearing failure.
Our flex coupling can meet the greater torque demands as well as increased flexibility while needing no maintenance as you would have to with using universal joints.
One product multiple uses. Why would you use distinctive products if you didnt need to when 1 product will do it all, a no maintenance, substantial speed, higher torque, higher angle of misalignment capable flexible 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 used at 25??.
czep300 is capable of handling 300 ft lbs of static torque and operate at angles of 25??
czep500 can deal with 500ft lbs of static torque .
We are looking at what the market demands so bigger or smaller we will be adding additional as time goes on.
We have all the splines and keyways you need to match your tools.
We want to do the job with you, so speak to us and lets get the job done together 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 during the silicone fluid. Some plates are attached to your 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 speed. The silicone fluid resists the shear generated in it from the plates with differentiating speed, causing a torque transfer in the faster spinning axle on the slower spinning axle. Therefore, slight pace difference is needed for torque transfer.
If the rear wheels and driveshaft are slipping and turning faster than the front, friction involving the plates increases due to the generated shear while in the fluid, slippage is reduced, the rear wheel spin is reduced along with the torque from your input shaft is transferred to your front.
A viscous coupling is often set up 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 one particular axle. A single part in the viscous coupling is connected towards the driving axle, another part is connected 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 a viscous coupling is that it engages too slowly and will allow 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 during 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 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 various speeds while cornering. When excessive wheelspin occurs on a single of your axles, viscous coupling locks the differential and equalizes the speeds of the two axles. Torque is transferred to wheels that have traction. This is actually a full-time all wheel drive system.
Viscous coupling can also be integrated into the rear differential.
Precision Flexible Shaft Couplings
Clamping Precision Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings give more holding power 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 Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings supply more holding electrical power than set screw couplings without marring the shaft.
Set Screw Vibration-Damping
Precision Flexible Shaft Couplings
Set Screw Vibration-Damping Precision Versatile Shaft Couplings
Every single 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 flexible center that reduces vibration and compensates for large parallel and angular shaft misalignment.
Servomotor Precision Flexible Shaft Couplings
In a position to handle large 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 among two hubs, these couplings take care of 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 for instance instrumentation and motion control.
Electrically Isolating Servomotor
Precision Versatile 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
Flexible 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 a lot more velocity than standard servomotor couplings.
Versatile 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 Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings give far more 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 life of bearings, seals, and motors.
Clamping High-Parallel-Misalignment
Flexible Shaft Couplings
Clamping High-Parallel-Misalignment Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings deliver 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
Every single 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 take care of higher angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re commonly applied with conveyor rollers and roller feeds in printing and packaging machines.
Machinable-Bore Flexible 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 flexible spring steel wraps around the teeth of each 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 possess a metal-detector-grade rubber spider. Small pieces of metal inside the rubber will set off a metal detector, alerting you on the problem.
Cleaned and Bagged Flexible
Heat-Resistant Shaft Couplings
Cleaned and Bagged Flexible Heat-Resistant Shaft Couplings
Versatile Shaft Couplings for Continuous Motion
High-Speed Vibration-Damping
Versatile 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 versatile tire on these couplings safeguards elements on your shafts by reducing vibration and shock.
High-Torque Flexible Shaft Couplings
Using a rugged roller-chain style and design, these couplings supply excellent torque and angular misalignment capacities.
Ultra-High-Torque Versatile Shaft Couplings
By using a rigid gear style and design, these steel couplings transmit far more torque than other couplings of your same size.
Lightweight Versatile Shaft Couplings
Manufactured with lightweight nylon sleeves, these gear couplings call for 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 half of these couplings for the other; there?¡¥s no speak to concerning the elements, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.