Shaft Couplings

Types 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 principal classes: Material Flexing and Mechanical Flexing. The materials versatile styles acquire their versatility from stretching or compressing a resilient material, such as rubber, or from your flexing of thin metallic discs or grid. Material flexing couplings do not demand 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 ordinarily usually do not demand lubrication and operate in shear or compression and are ready 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 materials flexing coupling that transmits torque thru compression of an elastomeric spider insert placed among two intermeshing jaws.
Flex component is commonly manufactured from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Used for torsional dampening (vibration)
Minimal torque, common function applications
– Sleeve Coupling
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The sleeve coupling transmits low to medium torque in between connected tools in shear as a result of an elastomeric insert with male splines that mate with female hub splines. The insert materials is ordinarily EPDM, Neoprene or Hytrel as well as insert is usually a a single or two piece layout.
Moderate misalignment
Torsional dampening (vibration)
Finish 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 element connected to two hubs. The rubber component transmits torque in shear.
Lowers transmission of shock loads or vibration.
High misalignment capability
Uncomplicated assembly w/o moving hubs or connected equipment
Reasonable to substantial pace operation
Wide 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 components. It operates by tension and compression of chorded segments on the popular bolt circle bolted alternately involving the drive and driven side. These couplings are typically comprised of two hubs, two discs packs, and also a center member. A single disc pack can accommodate angular and axial misalignment. Two disc packs are desired to accommodate parallel misalignment.
? Allows angular parallel and axial misalignment
? Is really a true restricted finish float design
? A zero backlash design
? High pace rating and stability
– Diaphragm Coupling
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Diaphragm couplings employ a single or even a series of plates or diaphragms to the flexible members. It transmits torque from the outdoors diameter of the versatile plate to the within diameter, throughout the spool or spacer piece, then from inside to outdoors diameter. The deflection with the outer diameter relative to the inner diameter is what takes place once the diaphragm is topic to misalignment. For instance, axial displacement attempts stretch the diaphragm which success inside a mixture of elongations and bending of the diaphragm profile.
? Will allow angular, parallel and high axial misalignments
? Used in substantial torque, high pace applications
Mechanical Flexing Couplings
The mechanical flexing couplings accept misalignment from rocking, rolling or sliding of metal surfaces. All metal mechanical flexing couplings require 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 as well as the highest sum of torque within the smallest diameter of any versatile coupling.

Every coupling includes two hubs with crowned external gear teeth. The hubs mesh with two internally splined flanged sleeves that are bolted together. Gear couplings accommodate angular and axial misalignment by the rocking and sliding of your crowned gear teeth towards the mating sleeve teeth. Parallel misalignment is accommodated by getting two adjacent hub/sleeve flex points. Gear couplings demand periodic lubrication depending on the application. They may be delicate to lubrication failures but when adequately installed and maintained, these couplings have a services existence of three to 5 many years and in some cases they could 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 offers torsional damping and flexibility of an elastomer but the power of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from one hub on the other through the rocking and sliding of the tapered grid within the mating hub slots. The grid cross section is generally tapered for better hub speak to and simpler assembly. As there exists movement among contacting hub and grid metal parts, lubrication is needed.
– Roller Chain Coupling
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Roller Chain variety couplings consist of two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are utilized for low to reasonable torque and speed applications. The meshing with the sprocket teeth and chain transmits torque and the related clearances accommodate angular, parallel and axial misalignment.

Chain couplings call for periodic lubrication depending on the application. The lubrication is ordinarily brushed onto the chain and a cover is utilised to assist maintain the lubrication around the coupling.
To understand a lot more about every one of the different types of couplings, visitthe EP Coupling Webpage.
Mechanical Electrical power Transmission ¡§C Shaft Coupling substitute technology.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw type shaft couplings
EP Coupling may be the most up-to-date in shaft coupling style and design, beam, bellows and jaw couplings all work at high speed but lower angle of misalignment.
Over the other end universal joints can handle increased quantities of misalignment but at reduce speeds and continual upkeep.
EP Coupling like a hybrid versatile coupling can do each.
Improving on current coupling technological innovation we offer numerous distinct versions which makes it possible for a 0 to 25?? operational angle of utilization
No internal parts ¡§C No bearings to be constantly lubricated and exchange , this saves you time and money.
1 Piece style and design implies no broken yokes or hubs.
Large speed- Runs at as much as 7000 RPM
Torsionally rigid at very low angles of misalignment
Scalable ¡§C the EP unit could be scaled up or right down to suit person customer demands.?
Customizable ¡§C Have a specific form/function the spring/ball settings might be changed to match most applications.
Various shaft varieties or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being manufactured from two counter wound springs implies it absorbs shock force without damage
Spring layout permits greater angle of utilization without damaging parts?
ISO9001 2007 manufactured
The patented EP style 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 constant upkeep.
So how does it get the job done? The design is quite simple, the sets of springs are counterwound so one particular tightens while the other loosens and visa versa.
This makes it possible for the coupling to perform in the two forward and reverse.
Its simplicity doesn?¡¥t end there, the only thing while in the center of the coupling is a single ball bearing this enables the coupling to pivot allowing for maximum flexibility, this suggests 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 aspects leads to rapid failure.
So no bearings usually means 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 far better The versatile coupling is powered through the springs, but because it is usually a pair of springs it effectively is often a metal bar, add the ball bearing it turns into a flexible metal bar.
So this signifies a lot more torque and still have the flex that would destroy a standard universal or constant velocity joint.
Large speed/low velocity ¡§C Now flex coupling technology is split into two key areas, high speed, lower torque, small angle of misalignment and decrease pace, greater torque, increased angle of misalignment.
Different couplings applications, same product ¡§C Flexible/High pace couplings are Beam couplings, elastomeric, bellows couplings and jaw style 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 manage is quite small.
EP?¡¥s flexible coupling remains torsionally rigid at reduced angles at substantial velocity, with far more torque than say a standard beam coupling, together with the added flexibility if desired.
Lower speed couplings like universal joints can function at higher torque and larger degrees of misalignment but they have inner components that need to be continuously maintained.
If not greasing for lubrication and bearing replacement as well as angles of misalignment they will function at is restricted as well, as too much will lead to bearing failure.
Our flex coupling can meet the increased torque demands and the increased flexibility while needing no upkeep 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 particular product will do it all, a no servicing, substantial speed, large torque, increased angle of misalignment capable versatile coupling.
Three models and counting ¡§C To date we have 3 models the czep150, czep300 plus 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 handle 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 products.
We want to function with you, so get hold of us and lets perform 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 during the silicone fluid. Some plates are attached towards the front axle driveshaft and some are attached to 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 by the plates with differentiating pace, causing a torque transfer from the 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 in between the plates increases due for the generated shear from the fluid, slippage is reduced, the rear wheel spin is reduced and also the torque from your input shaft is transferred towards the front.
A viscous coupling is often installed 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 particular axle. One part of the viscous coupling is linked towards the driving axle, another part is connected for the driven axle. When driving wheels slip, viscous coupling locks and torque is transferred for the other axle. This is an automatic all wheel drive system.
The disadvantage of the viscous coupling is that it engages too slowly and allows 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 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 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 electrical power to all wheels and lets them turn at distinct speeds while cornering. When excessive wheelspin happens on 1 in the axles, viscous coupling locks the differential and equalizes the speeds of the two 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 Versatile Shaft Couplings
Clamping Precision Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings offer much 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 Flexible Shaft Couplings
Clamping Vibration-Damping Precision Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings provide far more holding 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
Every 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 Flexible Shaft Couplings
Also called double-loop couplings, these possess a flexible center that lowers vibration and compensates for higher parallel and angular shaft misalignment.
Servomotor Precision Flexible Shaft Couplings
Able to manage higher twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
High-Speed Precision Flexible Shaft Couplings
Using a bellows amongst two hubs, these couplings deal with all kinds of misalignment and 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 additional misalignment than other precision couplings?auseful for low-torque, high-precision applications such as 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 a lot more speed than standard servomotor couplings.
Flexible Shaft Couplings
Set Screw Versatile Shaft Couplings
Each and 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 offer 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 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 present extra holding power than set screw couplings without marring the shaft.
Set Screw High-Parallel-Misalignment
Flexible 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 Versatile Shaft Couplings
Also known as Schmidt couplings, these deal with larger angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re commonly made use of 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 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 have a metal-detector-grade rubber spider. Small pieces of metal inside 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 flexible tire on these couplings safeguards parts on your shafts by reducing vibration and shock.
High-Torque Flexible Shaft Couplings
With a rugged roller-chain layout, these couplings supply excellent torque and angular misalignment capacities.
Ultra-High-Torque Flexible Shaft Couplings
Which has a rigid gear design and style, these steel couplings transmit far more torque than other couplings with the same size.
Lightweight Versatile Shaft Couplings
Produced with lightweight nylon sleeves, these gear couplings demand 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 on the other; there?¡¥s no contact between the components, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.


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