Types of Couplings
Class: Couplings
Article Tags:Couplingcouplingsdiaphragm couplingsdisc couplingsgear couplingsgrid couplingsjaw couplingsmaterial flexing couplingsmechanical flexing couplingsroller chain couplingssleeve couplingstire couplingstypes of couplings
Coupling fall into two primary classes: Material Flexing and Mechanical Flexing. The material flexible sorts get their flexibility from stretching or compressing a resilient material, which include rubber, or through the flexing of thin metallic discs or grid. Materials flexing couplings never require 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.

Materials Flexing Couplings
Materials flexing couplings normally don’t call for 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 can be a materials flexing coupling that transmits torque thru compression of an elastomeric spider insert positioned involving two intermeshing jaws.
Flex component is generally made from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Employed for torsional dampening (vibration)
Low torque, common objective applications
– Sleeve Coupling
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The sleeve coupling transmits minimal to medium torque between connected equipment 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 is usually a a single or two piece style and design.
Reasonable misalignment
Torsional dampening (vibration)
Finish float with slight axial clearance
Lower to medium torque, common 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.
Decreases transmission of shock loads or vibration.
High misalignment capability
Uncomplicated assembly w/o moving hubs or linked products
Reasonable to high velocity operation
Broad range 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 via stress and compression of chorded segments on the common bolt circle bolted alternately between the drive and driven side. These couplings are commonly comprised of two hubs, two discs packs, in addition to a center member. A single disc pack can accommodate angular and axial misalignment. Two disc packs are necessary to accommodate parallel misalignment.
? Enables angular parallel and axial misalignment
? Is usually a real constrained finish float style and design
? A zero backlash design and style
? Large velocity rating and balance
– Diaphragm Coupling
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Diaphragm couplings use just one or possibly a series of plates or diaphragms for the versatile members. It transmits torque in the outside 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 for the inner diameter is what happens when the diaphragm is subject to misalignment. As an example, axial displacement attempts stretch the diaphragm which results inside a combination of elongations and bending in the diaphragm profile.
? Lets angular, parallel and high axial misalignments
? Utilized in substantial 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 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 and also the highest sum of torque during the smallest diameter of any versatile coupling.

Every coupling consists of 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 from the crowned gear teeth against the mating sleeve teeth. Parallel misalignment is accommodated by having two adjacent hub/sleeve flex points. Gear couplings demand periodic lubrication based on the application. They can be sensitive to lubrication failures but if properly installed and maintained, these couplings have a support existence of three to 5 many years and in some instances they might last for decades.
– Grid Couplings
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Grid couplings include 2 radially slotted hubs that mesh having 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 1 hub for the other through the rocking and sliding of a tapered grid during the mating hub slots. The grid cross area is generally tapered for greater hub get hold of and easier assembly. As there exists movement involving contacting hub and grid metal elements, lubrication is required.
– Roller Chain Coupling
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Roller Chain kind couplings consist of two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are applied for low to reasonable torque and velocity applications. The meshing on the sprocket teeth and chain transmits torque as well as linked clearances accommodate angular, parallel and axial misalignment.

Chain couplings require periodic lubrication based on the application. The lubrication is generally brushed onto the chain in addition to a cover is used to aid preserve the lubrication to the coupling.
To learn far more about every one of the various kinds of couplings, visitthe EP Coupling Web page.
Mechanical Power Transmission ¡§C Shaft Coupling replacement technologies.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw sort shaft couplings
EP Coupling may be the newest in shaft coupling design, beam, bellows and jaw couplings all function at substantial speed but very low angle of misalignment.
Around the other end universal joints are able to deal with larger amounts of misalignment but at decrease speeds and continual maintenance.
EP Coupling as being a hybrid versatile coupling can do both.
Enhancing on current coupling technological innovation we offer several various versions which will allow a 0 to 25?? operational angle of usage
No inner parts ¡§C No bearings to become constantly lubricated and change , this saves you time and money.
One Piece layout indicates no broken yokes or hubs.
Higher speed- Runs at up to 7000 RPM
Torsionally rigid at lower angles of misalignment
Scalable ¡§C the EP unit might be scaled up or down to suit person purchaser necessities.?
Customizable ¡§C Possess a unique form/function the spring/ball settings may be modified to match most applications.
Unique shaft styles or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being produced from two counter wound springs indicates it absorbs shock force without damage
Spring style and design will allow greater angle of usage without damaging parts?
ISO9001 2007 manufactured
The patented EP style and design allows 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 consistent servicing.
So how does it get the job done? The style is quite simple, the sets of springs are counterwound so 1 tightens while the other loosens and visa versa.
This allows the coupling to function in both forward and reverse.
Its simplicity doesn?¡¥t finish there, the only thing from the center with the coupling can be a single ball bearing this allows the coupling to pivot allowing for maximum flexibility, this indicates no bearings.
Bearings are a frequent upkeep 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 continual upkeep or worse substitute.
One particular 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 superior The flexible coupling is powered by the springs, but because it is often a pair of springs it effectively is usually a metal bar, add the ball bearing it turns into a flexible metal bar.
So this suggests more torque and still have the flex that would destroy a standard universal or consistent velocity joint.
High speed/low pace ¡§C Now flex coupling technology is split into two key areas, large velocity, lower torque, small angle of misalignment and lower velocity, increased torque, higher angle of misalignment.
Different couplings applications, same product ¡§C Flexible/High speed couplings are Beam couplings, elastomeric, bellows couplings and jaw variety couplings which can run at substantial 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 reduced angles at high speed, with far additional torque than say a standard beam coupling, together with the added flexibility if necessary.
Lower velocity couplings like universal joints can get the job done at substantial torque and larger degrees of misalignment but they have inner parts that need for being regularly maintained.
If not greasing for lubrication and bearing substitute and the angles of misalignment they could operate at is constrained as well, as too much will lead to bearing failure.
Our flex coupling can meet the larger torque demands plus the increased versatility while needing no maintenance 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 one product will do it all, a no servicing, large speed, substantial torque, larger 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 manage 500ft lbs of static torque .
We are looking at what the market demands so bigger or smaller we will be adding far more as time goes on.
We have all the splines and keyways you need to fit your gear.
We want to perform with you, so contact us and lets perform 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 from 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 from the plates with differentiating speed, causing a torque transfer through the faster spinning axle towards the slower spinning axle. Therefore, slight speed 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 towards the generated shear while in the fluid, slippage is reduced, the rear wheel spin is reduced as well as torque through the input shaft is transferred towards the front.
A viscous coupling could be 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 power is transferred to just 1 axle. One part from the viscous coupling is linked on the driving axle, another part is linked to the driven axle. When driving wheels slip, viscous coupling locks and torque is transferred to the other axle. This is an automatic all wheel drive system.
The disadvantage of a 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 which has 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 electrical power to all wheels and lets them turn at unique speeds while cornering. When excessive wheelspin takes place on one of 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 actually 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 offer much 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 a lot more holding 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 possess a flexible center that decreases vibration and compensates for high parallel and angular shaft misalignment.
Servomotor Precision Versatile Shaft Couplings
Ready 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
Which has a bellows in between two hubs, these couplings deal with all forms of misalignment and 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 far more misalignment than other precision couplings?auseful for low-torque, high-precision applications which include instrumentation and motion control.
Electrically Isolating Servomotor
Precision Versatile 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 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
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 extra pace 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 Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings present far more holding 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 lifestyle 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 offer 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
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 greater angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re generally 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 Versatile Shaft Couplings
A strip of flexible 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 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 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
Flexible Shaft Couplings
High-Speed Vibration-Damping Versatile Shaft Couplings
Use these gear-shaped couplings for high-speed and high-torque applications.
Vibration-Damping Flexible Shaft Couplings
A versatile tire on these couplings safeguards parts on your shafts by reducing vibration and shock.
High-Torque Flexible Shaft Couplings
With a rugged roller-chain style, these couplings provide excellent torque and angular misalignment capacities.
Ultra-High-Torque Flexible Shaft Couplings
That has a rigid gear design, these steel couplings transmit a lot more torque than other couplings from the same size.
Lightweight Versatile Shaft Couplings
Created with lightweight nylon sleeves, these gear couplings require 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 particular half of these couplings on the other; there?¡¥s no speak to concerning the parts, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.