Varieties of Couplings
Class: Couplings
Report Tags:Couplingcouplingsdiaphragm couplingsdisc couplingsgear couplingsgrid couplingsjaw couplingsmaterial flexing couplingsmechanical flexing couplingsroller chain couplingssleeve couplingstire couplingstypes of couplings
Coupling fall into two main classes: Materials Flexing and Mechanical Flexing. The materials flexible varieties get their versatility from stretching or compressing a resilient materials, like rubber, or from the flexing of thin metallic discs or grid. Material flexing couplings do not need lubrication, together 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 require lubrication.

Material Flexing Couplings
Materials flexing couplings typically do not need lubrication and operate in shear or compression and are able 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 material flexing coupling that transmits torque thru compression of an elastomeric spider insert placed among two intermeshing jaws.
Flex element is commonly made from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Utilised for torsional dampening (vibration)
Reduced torque, general purpose applications
– Sleeve Coupling
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The sleeve coupling transmits very low to medium torque among linked gear in shear as a result of an elastomeric insert with male splines that mate with female hub splines. The insert material is normally EPDM, Neoprene or Hytrel and also the insert could be a one or two piece design and style.
Moderate misalignment
Torsional dampening (vibration)
Finish float with slight axial clearance
Minimal to medium torque, basic function 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.
Minimizes transmission of shock loads or vibration.
High misalignment capability
Quick assembly w/o moving hubs or linked tools
Moderate to high velocity operation
Broad array of torque capability
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted through flexing disc components. It operates as a result of tension and compression of chorded segments on a frequent 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. Just one disc pack can accommodate angular and axial misalignment. Two disc packs are necessary to accommodate parallel misalignment.
? Allows angular parallel and axial misalignment
? Is often a real restricted finish float layout
? A zero backlash design and style
? Large velocity rating and stability
– Diaphragm Coupling
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Diaphragm couplings use a single or perhaps a series of plates or diaphragms to the flexible members. It transmits torque from your outside diameter of a versatile plate for the within diameter, across the spool or spacer piece, then from within to outside diameter. The deflection on the outer diameter relative to the inner diameter is what occurs when the diaphragm is subject to misalignment. As an example, axial displacement attempts stretch the diaphragm which benefits in a combination of elongations and bending from the diaphragm profile.
? Permits angular, parallel and higher axial misalignments
? Utilized in high torque, large velocity 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 plus the highest volume of torque during 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 are bolted with each other. Gear couplings accommodate angular and axial misalignment from the rocking and sliding with the crowned gear teeth towards the mating sleeve teeth. Parallel misalignment is accommodated by owning two adjacent hub/sleeve flex factors. Gear couplings require periodic lubrication depending on the application. They’re sensitive to lubrication failures but when adequately installed and maintained, these couplings possess a support life of 3 to five many years and in some instances they’re able to final for decades.
– Grid Couplings
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Grid couplings include two radially slotted hubs that mesh by using a serpentine strip of spring steel the grid provides torsional damping and versatility of an elastomer however the power of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from one hub to the other by means of the rocking and sliding of the tapered grid inside the mating hub slots. The grid cross section is generally tapered for far better hub speak to and a lot easier assembly. As there’s movement in between contacting hub and grid metal elements, lubrication is needed.
– 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 utilised for reduced to reasonable torque and speed applications. The meshing of the sprocket teeth and chain transmits torque and the associated clearances accommodate angular, parallel and axial misalignment.

Chain couplings demand periodic lubrication based on the application. The lubrication is ordinarily brushed onto the chain plus a cover is applied to aid keep the lubrication on the coupling.
To learn more 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 sort shaft couplings
EP Coupling is definitely the latest in shaft coupling style, beam, bellows and jaw couplings all function at substantial speed but lower angle of misalignment.
To the other end universal joints are able to manage higher quantities of misalignment but at lower speeds and consistent servicing.
EP Coupling as being a hybrid versatile coupling can do both.
Improving on current coupling technology we give numerous distinct versions which makes it possible for a 0 to 25?? operational angle of usage
No inner parts ¡§C No bearings to become continually lubricated and change , this saves you money and time.
One Piece style and design signifies no broken yokes or hubs.
Large speed- Runs at up to 7000 RPM
Torsionally rigid at reduced angles of misalignment
Scalable ¡§C the EP unit is often scaled up or right down to suit personal consumer specifications.?
Customizable ¡§C Have a specific form/function the spring/ball settings may be transformed to fit most applications.
Various shaft sorts or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being made from two counter wound springs means it absorbs shock force without damage
Spring style enables greater angle of usage without damaging components?
ISO9001 2007 manufactured
The patented EP design and style allows for larger angle of utilization without deformation with all the torque transfer seen with Universal Joints, giving the performance of a Universal joint without the constant upkeep.
So how does it function? The design is quite simple, the sets of springs are counterwound so 1 tightens while another loosens and visa versa.
This enables the coupling to function in both forward and reverse.
Its simplicity doesn?¡¥t end there, the only thing while in the center with the coupling is usually a single ball bearing this permits the coupling to pivot allowing for maximum versatility, this implies no bearings.
Bearings are a frequent maintenance issue, they cannot run in harsh environments like water, mud, sand, dust and dirt as any intrusion by any of those components leads to rapid failure.
So no bearings indicates no continuous maintenance or worse replacement.
1 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 greater The versatile coupling is powered through 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 implies additional torque and still have the flex that would destroy a standard universal or consistent velocity joint.
Substantial speed/low pace ¡§C Now flex coupling technology is split into two most important areas, large pace, low torque, small angle of misalignment and lower velocity, larger torque, larger angle of misalignment.
Diverse couplings applications, same product ¡§C Flexible/High pace couplings are Beam couplings, elastomeric, bellows couplings and jaw variety couplings which can run at higher 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 quantity of torque these flex couplings can take care of is quite small.
EP?¡¥s flexible coupling remains torsionally rigid at lower angles at higher pace, with far far more torque than say a standard beam coupling, using the added versatility if necessary.
Lower velocity couplings like universal joints can operate at higher torque and larger degrees of misalignment but they have inner elements that need to become regularly maintained.
If not greasing for lubrication and bearing substitute along with the angles of misalignment they could function at is limited as well, as too much will lead to bearing failure.
Our flex coupling can meet the larger torque demands and the increased flexibility while needing no upkeep as you would have to with using universal joints.
One product multiple uses. Why would you use diverse products if you didnt need to when one product will do it all, a no maintenance, substantial pace, large torque, greater angle of misalignment capable versatile coupling.
Three models and counting ¡§C To date we have three models the czep150, czep300 and 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 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 speak to us and lets work 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 inside the silicone fluid. Some plates are attached towards 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 speed. The silicone fluid resists the shear generated in it from the plates with differentiating velocity, causing a torque transfer in the faster spinning axle towards 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 involving the plates increases due to your generated shear from the fluid, slippage is reduced, the rear wheel spin is reduced as well as torque from your input shaft is transferred for the front.
A viscous coupling might be 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 particular part with the viscous coupling is connected for the driving axle, another part is connected to the driven axle. When driving wheels slip, viscous coupling locks and torque is transferred on 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 finish is engaged that has a slight delay, causing sudden change 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 sensitive 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 diverse speeds while cornering. When excessive wheelspin happens on one particular from the axles, viscous coupling locks the differential and equalizes the speeds of both 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 far more holding power than set screw couplings without marring the shaft.
Set Screw Precision Versatile 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 Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings provide more holding energy 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 versatile center that minimizes vibration and compensates for high parallel and angular shaft misalignment.
Servomotor Precision Flexible Shaft Couplings
Ready to manage 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 varieties 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 more 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 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
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 take care of four times additional speed than standard servomotor couplings.
Flexible Shaft Couplings
Set Screw Flexible 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 present 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 Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings provide a lot 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 Versatile Shaft Couplings
Also known as Schmidt couplings, these handle greater angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re frequently used 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 for 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 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
Using a rugged roller-chain design and style, these couplings give 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 from the same size.
Lightweight Flexible Shaft Couplings
Created 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 1 half of these couplings to the other; there?¡¥s no contact between the parts, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.