Shaft Couplings

Sorts 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 main categories: Materials Flexing and Mechanical Flexing. The material flexible varieties acquire their flexibility from stretching or compressing a resilient material, for instance rubber, or through the flexing of thin metallic discs or grid. Material flexing couplings usually 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
Materials flexing couplings typically tend not to require 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 is actually a materials flexing coupling that transmits torque thru compression of an elastomeric spider insert positioned involving two intermeshing jaws.
Flex element is typically made from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Utilised for torsional dampening (vibration)
Lower torque, general purpose applications
– Sleeve Coupling
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The sleeve coupling transmits minimal to medium torque involving linked tools in shear by means of an elastomeric insert with male splines that mate with female hub splines. The insert material is usually EPDM, Neoprene or Hytrel and also the insert could be a one or two piece design.
Moderate misalignment
Torsional dampening (vibration)
Finish float with slight axial clearance
Low to medium torque, general objective applications
– Tire Coupling
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These couplings possess a rubber or polyurethane element linked to two hubs. The rubber component transmits torque in shear.
Minimizes transmission of shock loads or vibration.
High misalignment capability
Straightforward assembly w/o moving hubs or connected gear
Reasonable to higher speed operation
Wide range of torque capability
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted as a result of flexing disc factors. It operates as a result of tension and compression of chorded segments on the frequent bolt circle bolted alternately in between the drive and driven side. These couplings are typically comprised of two hubs, two discs packs, plus a center member. A single disc pack can accommodate angular and axial misalignment. Two disc packs are desired to accommodate parallel misalignment.
? Makes it possible for angular parallel and axial misalignment
? Is often a genuine constrained end float style
? A zero backlash design and style
? Substantial velocity rating and balance
– Diaphragm Coupling
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Diaphragm couplings employ just one or possibly a series of plates or diaphragms for the flexible members. It transmits torque from the outdoors diameter of the versatile plate for the within diameter, across the spool or spacer piece, and then from inside to outdoors diameter. The deflection in the outer diameter relative to the inner diameter is what happens once the diaphragm is topic to misalignment. As an example, axial displacement attempts stretch the diaphragm which success inside a combination of elongations and bending with the diaphragm profile.
? Lets angular, parallel and higher axial misalignments
? Utilized in large 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 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 amount of torque along with the highest amount 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 which are bolted with each other. Gear couplings accommodate angular and axial misalignment through the rocking and sliding on the crowned gear teeth towards the mating sleeve teeth. Parallel misalignment is accommodated by possessing two adjacent hub/sleeve flex factors. Gear couplings call for periodic lubrication depending on the application. They can be sensitive to lubrication failures but if properly set up and maintained, these couplings have a support life of 3 to 5 many years and in some cases they might last for many years.
– Grid Couplings
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Grid couplings consist of two radially slotted hubs that mesh which has a serpentine strip of spring steel the grid presents torsional damping and versatility of an elastomer however the power of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from a single hub on the other via the rocking and sliding of the tapered grid inside the mating hub slots. The grid cross part is usually tapered for improved hub speak to and simpler assembly. As there is certainly movement between contacting hub and grid metal elements, lubrication is needed.
– Roller Chain Coupling
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Roller Chain type couplings consist of two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are applied for very low to reasonable torque and pace applications. The meshing of your sprocket teeth and chain transmits torque as well as the related clearances accommodate angular, parallel and axial misalignment.

Chain couplings call for periodic lubrication based on the application. The lubrication is ordinarily brushed onto the chain plus a cover is applied to help retain the lubrication over the coupling.
To discover more about all of the various kinds of couplings, visitthe EP Coupling Webpage.
Mechanical Energy Transmission ¡§C Shaft Coupling replacement technology.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw sort shaft couplings
EP Coupling could be the latest in shaft coupling design and style, beam, bellows and jaw couplings all function at higher velocity but lower angle of misalignment.
Around the other end universal joints can deal with greater quantities of misalignment but at reduce speeds and constant maintenance.
EP Coupling as a hybrid flexible coupling can do both.
Bettering on present coupling technological innovation we give a variety of unique versions which allows a 0 to 25?? operational angle of usage
No internal components ¡§C No bearings for being frequently lubricated and substitute , this saves you time and money.
One Piece design signifies no broken yokes or hubs.
High speed- Runs at up to 7000 RPM
Torsionally rigid at minimal angles of misalignment
Scalable ¡§C the EP unit could be scaled up or down to suit individual buyer necessities.?
Customizable ¡§C Have a certain form/function the spring/ball settings is often changed to match most applications.
Various shaft forms or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being made from two counter wound springs signifies it absorbs shock force without damage
Spring design enables greater angle of usage without damaging elements?
ISO9001 2007 manufactured
The patented EP design makes it possible for for larger angle of usage without deformation using the torque transfer seen with Universal Joints, giving the performance of the Universal joint without the continual servicing.
So how does it work? The style is quite simple, the sets of springs are counterwound so 1 tightens while another loosens and visa versa.
This lets the coupling to work in both forward and reverse.
Its simplicity doesn?¡¥t finish there, the only thing while in the center from the coupling is actually a single ball bearing this lets the coupling to pivot allowing for maximum versatility, this suggests no bearings.
Bearings are a continuous 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 layout ¡§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 better The flexible coupling is powered from the springs, but because it is really a pair of springs it effectively is really a metal bar, add the ball bearing it turns into a flexible metal bar.
So this signifies much more torque and still have the flex that would destroy a standard universal or consistent velocity joint.
Large speed/low pace ¡§C Now flex coupling technology is split into two principal areas, high pace, lower torque, small angle of misalignment and reduce speed, higher torque, higher angle of misalignment.
Diverse couplings applications, same product ¡§C Flexible/High velocity couplings are Beam couplings, elastomeric, bellows couplings and jaw type couplings which can run at large 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 sum of torque these flex couplings can take care of is quite small.
EP?¡¥s flexible coupling remains torsionally rigid at reduced angles at higher speed, with far more torque than say a standard beam coupling, with all the added flexibility if desired.
Reduced velocity couplings like universal joints can do the job at substantial torque and larger degrees of misalignment but they have internal elements that need to become regularly maintained.
If not greasing for lubrication and bearing substitute and the angles of misalignment they’re able to work at is constrained as well, as too much will lead to bearing failure.
Our flex coupling can meet the increased torque demands along with the increased versatility while needing no maintenance 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 a single product will do it all, a no upkeep, large pace, large torque, greater angle of misalignment capable flexible coupling.
Three models and counting ¡§C To date we have 3 models the czep150, czep300 as well as czep500
czep150 is capable of handling 150ft lbs of torque and be employed 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 a lot more as time goes on.
We have all the splines and keyways you need to match your tools.
We want to perform with you, so get hold of us and lets perform together 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 from the silicone fluid. Some plates are attached for 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 velocity, causing a torque transfer through the faster spinning axle on the slower spinning axle. Therefore, slight pace difference is required for torque transfer.
If the rear wheels and driveshaft are slipping and turning faster than the front, friction between the plates increases due on the generated shear in 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 might be installed in two ways:
viscous coupling acting instead of a center differential
Viscous Coupling Acting Instead Of the Center Differential
In this case, in normal conditions, all energy is transferred to just a single axle. 1 part of your viscous coupling is linked towards the driving axle, another part is linked to the driven axle. When driving wheels slip, viscous coupling locks and torque is transferred towards the other axle. This is an automatic all wheel drive system.
The disadvantage of a viscous coupling is that it engages too slowly and permits 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 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 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 energy to all wheels and lets them turn at distinct speeds while cornering. When excessive wheelspin takes place on 1 on the axles, viscous coupling locks the differential and equalizes the speeds of both 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 Flexible Shaft Couplings
Clamping Precision Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings present extra 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 Versatile Shaft Couplings
Clamping Vibration-Damping Precision Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings give additional 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
Just about every hub includes a set screw, which bites into your shaft to hold the coupling in place.
High-Misalignment Vibration-Damping
Precision Versatile 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 higher parallel and angular shaft misalignment.
Servomotor Precision Flexible Shaft Couplings
Capable to take care of high twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
High-Speed Precision Versatile Shaft Couplings
That has a bellows between two hubs, these couplings deal with all forms of misalignment and therefore 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 extra misalignment than other precision couplings?auseful for low-torque, high-precision applications including 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 manage four times much more velocity than standard servomotor couplings.
Versatile Shaft Couplings
Set Screw Versatile 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 give extra holding energy 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 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
Flexible Shaft Couplings
Set Screw High-Parallel-Misalignment Versatile Shaft Couplings
Every single 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 increased angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re typically employed 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 Flexible 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 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 to your problem.
Cleaned and Bagged Versatile
Heat-Resistant Shaft Couplings
Cleaned and Bagged Versatile Heat-Resistant Shaft Couplings
Versatile Shaft Couplings for Continuous Motion
High-Speed Vibration-Damping
Versatile Shaft Couplings
High-Speed Vibration-Damping Flexible 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 components on your shafts by reducing vibration and shock.
High-Torque Versatile Shaft Couplings
Which has a rugged roller-chain layout, these couplings supply excellent torque and angular misalignment capacities.
Ultra-High-Torque Flexible Shaft Couplings
With a rigid gear design and style, these steel couplings transmit more torque than other couplings of the same size.
Lightweight Flexible Shaft Couplings
Produced 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 get in touch with among the elements, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.


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