Kinds of Couplings
Category: Couplings
Short article Tags:Couplingcouplingsdiaphragm couplingsdisc couplingsgear couplingsgrid couplingsjaw couplingsmaterial flexing couplingsmechanical flexing couplingsroller chain couplingssleeve couplingstire couplingstypes of couplings
Coupling fall into two principal categories: Materials Flexing and Mechanical Flexing. The material flexible forms get their flexibility from stretching or compressing a resilient materials, such as rubber, or from the flexing of thin metallic discs or grid. Materials flexing couplings will not 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
Material 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 materials flexing couplings are jaw, sleeve, tire, disc, grid and diaphragm couplings.
– Jaw Couplings
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The jaw coupling is often a materials flexing coupling that transmits torque thru compression of an elastomeric spider insert positioned between two intermeshing jaws.
Flex element is normally manufactured from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Made use of for torsional dampening (vibration)
Low torque, basic objective applications
– Sleeve Coupling
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The sleeve coupling transmits lower to medium torque between connected equipment in shear by 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 can be quite a 1 or two piece design and style.
Reasonable misalignment
Torsional dampening (vibration)
Finish float with slight axial clearance
Minimal to medium torque, common function applications
– Tire Coupling
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These couplings possess a rubber or polyurethane component connected to two hubs. The rubber element transmits torque in shear.
Decreases transmission of shock loads or vibration.
Large misalignment capability
Uncomplicated assembly w/o moving hubs or linked products
Moderate to large pace operation
Wide array of torque capability
– 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 the prevalent bolt circle bolted alternately amongst the drive and driven side. These couplings are generally 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.
? Will allow angular parallel and axial misalignment
? Is a accurate limited end float layout
? A zero backlash layout
? High 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 your versatile members. It transmits torque in the outside diameter of the versatile plate to your within diameter, throughout the spool or spacer piece, after which from within to outside diameter. The deflection with the outer diameter relative for the inner diameter is what takes place once the diaphragm is topic to misalignment. One example is, axial displacement attempts stretch the diaphragm which outcomes in the mixture of elongations and bending of the diaphragm profile.
? Allows angular, parallel and substantial axial misalignments
? Used in high torque, substantial 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 quantity of torque as well as highest quantity of torque while in the smallest diameter of any versatile 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 by the rocking and sliding of your 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 based on the application. They are really sensitive to lubrication failures but when effectively put in and maintained, these couplings possess a service lifestyle of three to five many years and in some instances they’re able to final 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 strength of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from one particular hub to the other by way of the rocking and sliding of the tapered grid during the mating hub slots. The grid cross section is generally tapered for much better hub contact and less complicated assembly. As there may be motion among 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 used for reduced to moderate torque and velocity applications. The meshing from the sprocket teeth and chain transmits torque plus the connected clearances accommodate angular, parallel and axial misalignment.

Chain couplings need periodic lubrication based on the application. The lubrication is usually brushed onto the chain in addition to a cover is used to assist keep the lubrication around the coupling.
To learn a lot more about all the various kinds of couplings, visitthe EP Coupling Page.
Mechanical Electrical power Transmission ¡§C Shaft Coupling substitute engineering.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw form shaft couplings
EP Coupling is the most recent in shaft coupling layout, beam, bellows and jaw couplings all operate at large speed but low angle of misalignment.
About the other finish universal joints are able to manage increased quantities of misalignment but at decrease speeds and continuous upkeep.
EP Coupling like a hybrid versatile coupling can do each.
Improving on existing coupling technologies we deliver numerous different versions which permits a 0 to 25?? operational angle of utilization
No inner elements ¡§C No bearings to get continuously lubricated and replace , this saves you money and time.
1 Piece design and style usually means 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 is often scaled up or down to suit person customer requirements.?
Customizable ¡§C Possess a precise form/function the spring/ball settings can be modified to match most applications.
Diverse shaft types 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 makes it possible for greater angle of usage without damaging parts?
ISO9001 2007 manufactured
The patented EP design and style will allow for larger angle of utilization without deformation together with the torque transfer seen with Universal Joints, giving the performance of the Universal joint without the frequent maintenance.
So how does it perform? The layout is quite simple, the sets of springs 208 Flexible Shaft Couplingare counterwound so one particular tightens while another loosens and visa versa.
This allows the coupling to operate in each forward and reverse.
Its simplicity doesn?¡¥t finish there, the only thing in the center on the coupling is often a single ball bearing this allows the coupling to pivot allowing for maximum flexibility, this means no bearings.
Bearings are a consistent 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 signifies no consistent upkeep or worse substitute.
A single 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 far better The flexible coupling is powered through the springs, but because it can be a pair of springs it effectively can be a metal bar, add the ball bearing it turns into a flexible metal bar.
So this usually means far more torque and still have the flex that would destroy a standard universal or constant velocity joint.
High speed/low velocity ¡§C Now flex coupling engineering is split into two key areas, large velocity, low torque, small angle of misalignment and reduced pace, greater torque, greater angle of misalignment.
Distinctive couplings applications, same product ¡§C Flexible/High speed couplings are Beam couplings, elastomeric, bellows couplings and jaw sort couplings which can run at substantial 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 deal with is quite small.
EP?¡¥s versatile coupling remains torsionally rigid at decrease angles at large pace, with far far more torque than say a standard beam coupling, together with the added versatility if required.
Decrease speed couplings like universal joints can function at high torque and larger degrees of misalignment but they have internal parts that need for being constantly maintained.
If not greasing for lubrication and bearing replacement as well as the angles of misalignment they will perform at is limited 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 upkeep as you would have to with using universal joints.
A single product multiple uses. Why would you use distinct products if you didnt need to when one product will do it all, a no servicing, substantial velocity, substantial torque, larger angle of misalignment capable versatile 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 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 extra as time goes on.
We have all the splines and keyways you need to match your products.
We want to get the job done with you, so get in touch with us and lets do the job 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 in 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 through the plates with differentiating speed, causing a torque transfer in the faster spinning axle to your 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 among the plates increases due to your generated shear inside the fluid, slippage is reduced, the rear wheel spin is reduced along with the torque through 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 a Center Differential
In this case, in normal conditions, all electrical power is transferred to just one particular axle. One particular part from the viscous coupling is connected for the driving axle, another part is linked 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 a viscous coupling is that it engages too slowly and lets 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 finish is engaged with a slight delay, causing sudden change inside 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 after which 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 happens 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 often 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 provide 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 Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings deliver more holding energy than set screw couplings without marring the shaft.
Set Screw Vibration-Damping
Precision Versatile 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 Flexible Shaft Couplings
Also called double-loop couplings, these have a versatile center that lowers vibration and compensates for large parallel and angular shaft misalignment.
Servomotor Precision Flexible Shaft Couplings
Able to handle large twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
High-Speed Precision Flexible Shaft Couplings
Having a bellows among two hubs, these couplings manage all types of misalignment and are good for precision stepper and encoder motion-control applications.
High-Misalignment Precision
Flexible Shaft Couplings
High-Misalignment Precision Versatile Shaft Couplings
Specially designed ridges allow these bellows couplings to compensate for much 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 Flexible Shaft Couplings
An acetal plastic spacer at the center of these couplings insulates bearings, encoders, and other shaft parts 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 far more speed than standard servomotor couplings.
Flexible 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 much more 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 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 supply additional holding energy than set screw couplings without marring the shaft.
Set Screw High-Parallel-Misalignment
Versatile Shaft Couplings
Set Screw High-Parallel-Misalignment Flexible Shaft Couplings
Each 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 greater angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re normally applied 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 Flexible 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 possess 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 Flexible
Heat-Resistant Shaft Couplings
Cleaned and Bagged Versatile Heat-Resistant Shaft Couplings
Flexible 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 versatile tire on these couplings safeguards elements on your shafts by reducing vibration and shock.
High-Torque Versatile Shaft Couplings
Having a rugged roller-chain design, these couplings present excellent torque and angular misalignment capacities.
Ultra-High-Torque Flexible Shaft Couplings
Using a rigid gear style and design, these steel couplings transmit a lot more torque than other couplings in the same size.
Lightweight Versatile Shaft Couplings
Created with lightweight nylon sleeves, these gear couplings need 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 to the other; there?¡¥s no speak to involving the parts, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.