Shaft Couplings

Forms of Couplings
Category: Couplings
Report Tags:Couplingcouplingsdiaphragm couplingsdisc couplingsgear couplingsgrid couplingsjaw couplingsmaterial flexing couplingsmechanical flexing couplingsroller chain couplingssleeve couplingstire couplingstypes of couplings
Coupling fall into two most important categories: Materials Flexing and Mechanical Flexing. The materials flexible styles obtain their flexibility from stretching or compressing a resilient material, like rubber, or through the flexing of thin metallic discs or grid. Materials flexing couplings never demand 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 call for lubrication.

Material Flexing Couplings
Material flexing couplings usually do not demand lubrication and operate in shear or compression and therefore are capable 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 a material flexing coupling that transmits torque thru compression of an elastomeric spider insert placed amongst two intermeshing jaws.
Flex component is generally manufactured from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Applied for torsional dampening (vibration)
Reduced torque, basic goal applications
– Sleeve Coupling
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The sleeve coupling transmits very low to medium torque concerning connected products in shear via an elastomeric insert with male splines that mate with female hub splines. The insert material is normally EPDM, Neoprene or Hytrel as well as the insert generally is a one or two piece layout.
Reasonable misalignment
Torsional dampening (vibration)
End float with slight axial clearance
Lower to medium torque, general objective applications
– Tire Coupling
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These couplings have a rubber or polyurethane element linked to two hubs. The rubber component transmits torque in shear.
Reduces transmission of shock loads or vibration.
Large misalignment capability
Quick assembly w/o moving hubs or linked gear
Moderate to higher pace operation
Broad choice of torque capacity
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted through flexing disc components. It operates by means of stress and compression of chorded segments on a prevalent bolt circle bolted alternately between the drive and driven side. These couplings are ordinarily 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 necessary to accommodate parallel misalignment.
? Lets angular parallel and axial misalignment
? Is really a correct constrained finish float style
? A zero backlash design and style
? High speed rating and stability
– Diaphragm Coupling
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Diaphragm couplings employ a single or maybe a series of plates or diaphragms for your versatile members. It transmits torque in the outdoors diameter of a versatile plate for the within diameter, throughout the spool or spacer piece, after which from within to outdoors diameter. The deflection of the outer diameter relative towards the inner diameter is what happens once the diaphragm is topic to misalignment. Such as, axial displacement attempts stretch the diaphragm which final results inside a blend of elongations and bending of your diaphragm profile.
? Makes it possible for angular, parallel and large axial misalignments
? Used in high 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 demand 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 during the smallest diameter of any flexible coupling.

Every coupling includes two hubs with crowned external gear teeth. The hubs mesh with two internally splined flanged sleeves which might be bolted with each other. Gear couplings accommodate angular and axial misalignment from the rocking and sliding of your crowned gear teeth against the mating sleeve teeth. Parallel misalignment is accommodated by having two adjacent hub/sleeve flex factors. Gear couplings demand periodic lubrication depending on the application. These are delicate to lubrication failures but if adequately put in and maintained, these couplings possess a services lifestyle of 3 to five years and in some cases they will last for many years.
– Grid Couplings
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Grid couplings include two radially slotted hubs that mesh using a serpentine strip of spring steel the grid delivers torsional damping and versatility of an elastomer but the power of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from one hub to the other through the rocking and sliding of a tapered grid while in the mating hub slots. The grid cross area is generally tapered for better hub get in touch with and much easier assembly. As there’s motion in between contacting hub and grid metal elements, lubrication is needed.
– Roller Chain Coupling
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Roller Chain style couplings include two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are made use of for very low to reasonable torque and pace applications. The meshing in the sprocket teeth and chain transmits torque along with the associated clearances accommodate angular, parallel and axial misalignment.

Chain couplings demand periodic lubrication depending on the application. The lubrication is commonly brushed onto the chain and also a cover is made use of to aid maintain the lubrication to the coupling.
To find out more about every one of the various kinds of couplings, visitthe EP Coupling Page.
Mechanical Electrical power Transmission ¡§C Shaft Coupling substitute technology.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw kind shaft couplings
EP Coupling is definitely the hottest in shaft coupling layout, beam, bellows and jaw couplings all perform at substantial pace but minimal angle of misalignment.
Over the other finish universal joints can manage larger amounts of misalignment but at decrease speeds and frequent servicing.
EP Coupling as a hybrid flexible coupling can do each.
Strengthening on current coupling technologies we supply quite a few unique versions which will allow a 0 to 25?? operational angle of usage
No internal elements ¡§C No bearings to get regularly lubricated and change , this saves you money and time.
One particular Piece style suggests no broken yokes or hubs.
Large speed- Runs at up to 7000 RPM
Torsionally rigid at very low angles of misalignment
Scalable ¡§C the EP unit can be scaled up or down to suit individual consumer prerequisites.?
Customizable ¡§C Possess a unique form/function the spring/ball settings might be transformed to match most applications.
Different shaft types 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 design and style lets greater angle of utilization without damaging elements?
ISO9001 2007 manufactured
The patented EP design allows for larger angle of usage without deformation with the torque transfer seen with Universal Joints, giving the performance of a Universal joint without the continuous upkeep.
So how does it do the job? The style is quite simple, the sets of springs are counterwound so one particular tightens while another loosens and visa versa.
This enables the coupling to operate in each forward and reverse.
Its simplicity doesn?¡¥t end there, the only thing from the center of the coupling is usually a single ball bearing this will allow the coupling to pivot allowing for maximum flexibility, this usually means no bearings.
Bearings are a constant 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 implies no frequent maintenance or worse substitute.
A single 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 actually a metal bar, add the ball bearing it turns into a versatile metal bar.
So this means more torque and still have the flex that would destroy a standard universal or continual velocity joint.
Large speed/low speed ¡§C Now flex coupling engineering is split into two most important areas, large speed, minimal torque, small angle of misalignment and reduce pace, larger torque, increased angle of misalignment.
Different couplings applications, same product ¡§C Flexible/High speed 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 quantity of torque these flex couplings can deal with is quite small.
EP?¡¥s versatile coupling remains torsionally rigid at reduce angles at substantial speed, with far extra torque than say a standard beam coupling, with all the added flexibility if necessary.
Decrease speed couplings like universal joints can perform at large torque and larger degrees of misalignment but they have inner components that need for being constantly maintained.
If not greasing for lubrication and bearing replacement along with the angles of misalignment they will do the job at is restricted as well, as too much will lead to bearing failure.
Our flex coupling can meet the increased torque demands as well as the increased versatility while needing no maintenance as you would have to with using universal joints.
One particular product multiple uses. Why would you use various products if you didnt need to when a single product will do it all, a no upkeep, large pace, substantial torque, larger angle of misalignment capable versatile coupling.
Three models and counting ¡§C To date we have three models the czep150, czep300 plus the czep500
czep150 is capable of handling 150ft lbs of torque and be used at 25??.
czep300 is capable of handling 300 ft lbs of static torque and operate at angles of 25??
czep500 can deal with 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 match your products.
We want to do the job with you, so make contact with us and lets function collectively 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 while in the silicone fluid. Some plates are attached on 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 speed. The silicone fluid resists the shear generated in it by the plates with differentiating pace, causing a torque transfer from your faster spinning axle for the slower spinning axle. Therefore, slight pace 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 while in the fluid, slippage is reduced, the rear wheel spin is reduced as well as torque in the input shaft is transferred towards the front.
A viscous coupling is often 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 1 axle. One part of your viscous coupling is linked for the driving axle, another part is linked on 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 will allow 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 by using 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 sensitive to uneven tread wear on front and rear tires. This is why Volvo first reduced the pre-tensioning in 2000 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 power to all wheels and lets them turn at various speeds while cornering. When excessive wheelspin takes place on one with the axles, viscous coupling locks the differential and equalizes the speeds of both axles. Torque is transferred to wheels that have traction. This can be 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 give a lot more holding electrical 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 Flexible Shaft Couplings
Clamping Vibration-Damping Precision Versatile 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 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 Flexible Shaft Couplings
Also called double-loop couplings, these have a versatile center that minimizes vibration and compensates for substantial parallel and angular shaft misalignment.
Servomotor Precision Flexible Shaft Couplings
Ready to take care of higher twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
High-Speed Precision Versatile Shaft Couplings
Having a bellows concerning two hubs, these couplings take care of all sorts of misalignment and therefore 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 a lot more misalignment than other precision couplings?auseful for low-torque, high-precision applications for example 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
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.
Versatile 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 Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings present 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 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 deliver far more 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 and every 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 increased angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re frequently utilised 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 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 within the rubber will set off a metal detector, alerting you towards the problem.
Cleaned and Bagged Flexible
Heat-Resistant Shaft Couplings
Cleaned and Bagged Flexible Heat-Resistant Shaft Couplings
Versatile Shaft Couplings for Continuous Motion
High-Speed Vibration-Damping
Versatile 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 flexible tire on these couplings safeguards elements on your shafts by reducing vibration and shock.
High-Torque Versatile Shaft Couplings
That has a rugged roller-chain style, these couplings give excellent torque and angular misalignment capacities.
Ultra-High-Torque Versatile Shaft Couplings
Having a rigid gear layout, these steel couplings transmit far more torque than other couplings in the same size.
Lightweight Versatile Shaft Couplings
Made 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 half of these couplings to your other; there?¡¥s no get hold of concerning the components, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.