Kinds 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: Material Flexing and Mechanical Flexing. The material versatile kinds acquire their versatility from stretching or compressing a resilient materials, like rubber, or from your flexing of thin metallic discs or grid. Material flexing couplings do not demand 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 call for lubrication.

Material Flexing Couplings
Materials flexing couplings normally never need lubrication and operate in shear or compression and therefore 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 is usually a materials flexing coupling that transmits torque thru compression of an elastomeric spider insert positioned concerning two intermeshing jaws.
Flex component is commonly made of NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Utilised for torsional dampening (vibration)
Lower torque, standard function applications
– Sleeve Coupling
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The sleeve coupling transmits very low to medium torque amongst linked equipment in shear via an elastomeric insert with male splines that mate with female hub splines. The insert materials is generally EPDM, Neoprene or Hytrel along with the insert is usually a 1 or two piece design and style.
Moderate misalignment
Torsional dampening (vibration)
End float with slight axial clearance
Minimal to medium torque, standard objective applications
– Tire Coupling
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These couplings possess a rubber or polyurethane element linked to two hubs. The rubber element transmits torque in shear.
Reduces transmission of shock loads or vibration.
Substantial misalignment capability
Straightforward assembly w/o moving hubs or linked tools
Moderate to large velocity operation
Broad array of torque capacity
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted via flexing disc aspects. It operates via stress and compression of chorded segments on a widespread bolt circle bolted alternately involving the drive and driven side. These couplings are generally comprised of two hubs, two discs packs, plus a center member. A single disc pack can accommodate angular and axial misalignment. Two disc packs are wanted to accommodate parallel misalignment.
? Lets angular parallel and axial misalignment
? Is a genuine limited end float design
? A zero backlash style
? Large pace rating and balance
– Diaphragm Coupling
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Diaphragm couplings make use of just one or perhaps a series of plates or diaphragms for that versatile members. It transmits torque in the outdoors diameter of a versatile plate to your within diameter, throughout the spool or spacer piece, then from within to outside diameter. The deflection on the outer diameter relative towards the inner diameter is what takes place when the diaphragm is topic to misalignment. One example is, axial displacement attempts stretch the diaphragm which success within a combination of elongations and bending with the diaphragm profile.
? Permits angular, parallel and high axial misalignments
? Utilized in large torque, high velocity 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 volume of torque along with the highest quantity of torque during the smallest diameter of any flexible coupling.

Each and every coupling includes two hubs with crowned external gear teeth. The hubs mesh with two internally splined flanged sleeves which might be bolted collectively. Gear couplings accommodate angular and axial misalignment from the rocking and sliding on the crowned gear teeth against the mating sleeve teeth. Parallel misalignment is accommodated by owning two adjacent hub/sleeve flex factors. Gear couplings demand periodic lubrication depending on the application. They are sensitive to lubrication failures but when effectively set up and maintained, these couplings have a services existence of three to 5 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 using a serpentine strip of spring steel the grid presents torsional damping and flexibility of an elastomer but the strength of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from one hub to your other by the rocking and sliding of the tapered grid while in the mating hub slots. The grid cross part is usually tapered for better hub contact and simpler assembly. As there is motion involving contacting hub and grid metal components, lubrication is required.
– Roller Chain Coupling
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Roller Chain style couplings consist of two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are employed for minimal to reasonable torque and speed applications. The meshing of your sprocket teeth and chain transmits torque plus the associated clearances accommodate angular, parallel and axial misalignment.

Chain couplings demand periodic lubrication based on the application. The lubrication is usually brushed onto the chain and also a cover is used to aid continue to keep the lubrication within the coupling.
To discover much more about all of the different types of couplings, visitthe EP Coupling Web page.
Mechanical Electrical power Transmission ¡§C Shaft Coupling replacement engineering.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw variety shaft couplings
EP Coupling may be the most up-to-date in shaft coupling design, beam, bellows and jaw couplings all function at large pace but lower angle of misalignment.
On the other end universal joints can manage higher quantities of misalignment but at reduced speeds and frequent servicing.
EP Coupling as being a hybrid flexible coupling can do each.
Enhancing on current coupling technological innovation we provide numerous distinctive versions which allows a 0 to 25?? operational angle of usage
No internal elements ¡§C No bearings for being continually lubricated and exchange , this saves you time and money.
One particular Piece layout indicates no broken yokes or hubs.
Higher speed- Runs at as much as 7000 RPM
Torsionally rigid at reduced angles of misalignment
Scalable ¡§C the EP unit could be scaled up or right down to suit person consumer demands.?
Customizable ¡§C Have a specific form/function the spring/ball settings might be modified to match most applications.
Distinct shaft styles or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being produced from two counter wound springs usually means it absorbs shock force without damage
Spring style lets greater angle of usage without damaging elements?
ISO9001 2007 manufactured
The patented EP style lets 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 consistent servicing.
So how does it get the job done? The design is quite simple, the sets of springs are counterwound so 1 tightens while another loosens and visa versa.
This lets the coupling to get the job done in the two forward and reverse.
Its simplicity doesn?¡¥t end there, the only thing within the center of your coupling is usually a single ball bearing this makes it possible for the coupling to pivot allowing for maximum versatility, this 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 factors leads to rapid failure.
So no bearings signifies no continual upkeep 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 greater The versatile coupling is powered from the springs, but because it is actually a pair of springs it effectively is often a metal bar, add the ball bearing it turns into a versatile metal bar.
So this signifies a lot more torque and still have the flex that would destroy a standard universal or frequent velocity joint.
Higher speed/low speed ¡§C Now flex coupling technological innovation is split into two principal areas, substantial pace, minimal torque, small angle of misalignment and reduced velocity, larger torque, larger angle of misalignment.
Distinct couplings applications, same product ¡§C Flexible/High pace couplings are Beam couplings, elastomeric, bellows couplings and jaw style couplings which can run at high speed 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 versatile coupling remains torsionally rigid at lower angles at large velocity, with far far more torque than say a standard beam coupling, with all the added flexibility if wanted.
Reduced speed couplings like universal joints can do the job at high torque and larger degrees of misalignment but they have internal components that need to become consistently maintained.
If not greasing for lubrication and bearing substitute and the angles of misalignment they can function 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 servicing as you would have to with using universal joints.
One particular product multiple uses. Why would you use distinct products if you didnt need to when a single product will do it all, a no maintenance, substantial velocity, substantial torque, increased angle of misalignment capable versatile coupling.
Three models and counting ¡§C To date we have three models the czep150, czep300 as well as the czep500
czep150 is capable of handling 150ft lbs of torque and be utilised at 25??.
czep300 is capable of handling 300 ft lbs of static torque and operate at angles of 25??
czep500 can handle 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 fit your products.
We want to get the job done with you, so get hold of us and lets get the job done 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 inside the silicone fluid. Some plates are attached to 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 by the plates with differentiating velocity, causing a torque transfer through the faster spinning axle to the slower spinning axle. Therefore, slight speed difference is needed for torque transfer.
If the rear wheels and driveshaft are slipping and turning faster than the front, friction concerning the plates increases due on the generated shear inside the fluid, slippage is reduced, the rear wheel spin is reduced as well as torque in the input shaft is transferred for the front.
A viscous coupling is usually set up 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 axle. One particular part of your viscous coupling is linked to the driving axle, another part is connected for the driven axle. When driving wheels slip, viscous coupling locks and torque is transferred to your other axle. This is an automatic all wheel drive system.
The disadvantage of a 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 end is engaged by using a slight delay, causing sudden change from 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 energy to all wheels and lets them turn at diverse speeds while cornering. When excessive wheelspin takes place on a single from the axles, viscous coupling locks the differential and equalizes the speeds of each axles. Torque is transferred to wheels that have traction. This is usually 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 give a lot more holding electrical 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 Flexible Shaft Couplings
Clamping Vibration-Damping Precision Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings offer extra holding electrical power than set screw couplings without marring the shaft.
Set Screw Vibration-Damping
Precision Versatile 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 Versatile Shaft Couplings
High-Misalignment Vibration-Damping Precision Flexible 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 Versatile Shaft Couplings
Capable to deal with high twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
High-Speed Precision Flexible Shaft Couplings
Using a bellows concerning two hubs, these couplings handle all kinds 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 extra misalignment than other precision couplings?auseful for low-torque, high-precision applications for instance 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 elements 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 handle four times extra velocity than standard servomotor couplings.
Flexible Shaft Couplings
Set Screw Versatile Shaft Couplings
Each 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 supply a lot more holding electrical power 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 existence 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 more holding 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
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 handle larger angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re frequently utilized with conveyor rollers and roller feeds in printing and packaging machines.
Machinable-Bore Versatile 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 versatile spring steel wraps around the teeth of both hubs to absorb sharp, momentary load increases that can come from motor startups, emergency braking, or sudden impact with hard objects.
Metal-Detectable Flexible 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 for 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
Versatile Shaft Couplings
High-Speed Vibration-Damping Flexible Shaft Couplings
Use these gear-shaped couplings for high-speed and high-torque applications.
Vibration-Damping Flexible Shaft Couplings
A flexible tire on these couplings safeguards elements on your shafts by reducing vibration and shock.
High-Torque Versatile Shaft Couplings
Using a rugged roller-chain style and design, these couplings provide excellent torque and angular misalignment capacities.
Ultra-High-Torque Versatile Shaft Couplings
That has a rigid gear style, these steel couplings transmit a lot more torque than other couplings with the same size.
Lightweight Flexible Shaft Couplings
Produced 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 1 half of these couplings for the other; there?¡¥s no contact between the components, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.