Shaft Couplings

Forms 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 styles acquire their versatility from stretching or compressing a resilient material, including rubber, or in the flexing of thin metallic discs or grid. Materials flexing couplings tend not to call for lubrication, using the exception of grid couplings.

The mechanical flexing couplings accept misalignment from rocking, rolling or sliding of metal surfaces. All metal mechanical flexing couplings need lubrication.

Materials Flexing Couplings
Materials flexing couplings generally don’t need lubrication and operate in shear or compression and therefore are able 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 a material flexing coupling that transmits torque thru compression of an elastomeric spider insert placed between two intermeshing jaws.
Flex component is normally manufactured from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Employed for torsional dampening (vibration)
Lower torque, basic function applications
– Sleeve Coupling
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The sleeve coupling transmits minimal to medium torque involving linked gear in shear as a result of an elastomeric insert with male splines that mate with female hub splines. The insert materials is normally EPDM, Neoprene or Hytrel as well as insert can be a 1 or two piece design and style.
Reasonable misalignment
Torsional dampening (vibration)
End float with slight axial clearance
Very low to medium torque, basic purpose 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.
Substantial misalignment capacity
Quick assembly w/o moving hubs or connected gear
Reasonable to high pace operation
Wide selection of torque capability
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted by means of flexing disc factors. It operates through stress and compression of chorded segments on the widespread bolt circle bolted alternately between the drive and driven side. These couplings are generally comprised of two hubs, two discs packs, plus a center member. Just one disc pack can accommodate angular and axial misalignment. Two disc packs are essential to accommodate parallel misalignment.
? Enables angular parallel and axial misalignment
? Is actually a correct restricted end float style and design
? A zero backlash design
? High velocity rating and balance
– Diaphragm Coupling
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Diaphragm couplings make use of a single or possibly a series of plates or diaphragms for the versatile members. It transmits torque from your outside diameter of a versatile plate towards the inside diameter, throughout the spool or spacer piece, after which from inside to outside diameter. The deflection of your outer diameter relative to your inner diameter is what happens once the diaphragm is topic to misalignment. As an example, axial displacement attempts stretch the diaphragm which effects inside a blend of elongations and bending from the diaphragm profile.
? Lets angular, parallel and high axial misalignments
? Used in higher torque, large pace 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 sum of torque as well as highest quantity of torque while in the smallest diameter of any versatile coupling.

Every single coupling includes two hubs with crowned external gear teeth. The hubs mesh with two internally splined flanged sleeves which can be bolted together. Gear couplings accommodate angular and axial misalignment through the rocking and sliding of your crowned gear teeth against the mating sleeve teeth. Parallel misalignment is accommodated by obtaining two adjacent hub/sleeve flex factors. Gear couplings require periodic lubrication based on the application. They can be sensitive to lubrication failures but if effectively set up and maintained, these couplings have a services lifestyle of three to 5 years and in some instances they’re able to last for decades.
– 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 particular hub for the other by way of the rocking and sliding of a tapered grid within the mating hub slots. The grid cross part is usually tapered for much better hub speak to and easier assembly. As there exists movement amongst contacting hub and grid metal elements, lubrication is needed.
– Roller Chain Coupling
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Roller Chain variety couplings consist of two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are applied for very low to moderate torque and speed applications. The meshing from the sprocket teeth and chain transmits torque along with the connected clearances accommodate angular, parallel and axial misalignment.

Chain couplings require periodic lubrication depending on the application. The lubrication is usually brushed onto the chain and also a cover is utilized to aid maintain the lubrication to the coupling.
To discover much more about all the different types of couplings, visitthe EP Coupling Webpage.
Mechanical Electrical power Transmission ¡§C Shaft Coupling substitute engineering.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw form shaft couplings
EP Coupling would be the most recent in shaft coupling design and style, beam, bellows and jaw couplings all work at large pace but lower angle of misalignment.
To the other finish universal joints can handle larger amounts of misalignment but at decrease speeds and frequent upkeep.
EP Coupling as a hybrid versatile coupling can do the two.
Strengthening on existing coupling technological innovation we present quite a few various versions which will allow a 0 to 25?? operational angle of usage
No inner parts ¡§C No bearings to become regularly lubricated and change , this saves you money and time.
One Piece style and design 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 could be scaled up or right down to suit individual client needs.?
Customizable ¡§C Possess a distinct form/function the spring/ball settings is usually altered to fit most applications.
Diverse shaft forms or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being created from two counter wound springs indicates it absorbs shock force without damage
Spring design and style will allow greater angle of usage without damaging elements?
ISO9001 2007 manufactured
The patented EP design and style enables for larger angle of utilization without deformation with the torque transfer seen with Universal Joints, giving the performance of a Universal joint without the constant maintenance.
So how does it do the job? The layout is quite simple, the sets of springs are counterwound so one particular tightens while the other loosens and visa versa.
This lets the coupling to get the job done in the two forward and reverse.
Its simplicity doesn?¡¥t end there, the only thing in the center of your coupling is actually a single ball bearing this lets the coupling to pivot allowing for maximum versatility, this indicates no bearings.
Bearings are a frequent servicing 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 usually means no constant maintenance or worse replacement.
One particular piece 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 improved The versatile coupling is powered by 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 suggests more torque and still have the flex that would destroy a standard universal or frequent velocity joint.
Substantial speed/low pace ¡§C Now flex coupling technological innovation is split into 2 most important areas, higher speed, lower torque, small angle of misalignment and lower pace, greater torque, greater angle of misalignment.
Diverse couplings applications, same product ¡§C Flexible/High velocity couplings are Beam couplings, elastomeric, bellows couplings and jaw kind couplings which can run at large pace 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 handle is quite small.
EP?¡¥s versatile coupling remains torsionally rigid at reduced angles at large speed, with far far more torque than say a standard beam coupling, with all the added versatility if essential.
Lower pace couplings like universal joints can perform at higher torque and larger degrees of misalignment but they have internal parts that need to be continuously maintained.
If not greasing for lubrication and bearing substitute and the angles of misalignment they might function at is restricted as well, as too much will lead to bearing failure.
Our flex coupling can meet the greater torque demands and also 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 diverse products if you didnt need to when one product will do it all, a no maintenance, large speed, higher torque, larger angle of misalignment capable versatile coupling.
Three models and counting ¡§C To date we have 3 models the czep150, czep300 as well as the czep500
czep150 is capable of handling 150ft lbs of torque and be made use of at 25??.
czep300 is capable of handling 300 ft lbs of static torque and operate at angles of 25??
czep500 can take care of 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 products.
We want to perform with you, so speak to us and lets perform collectively 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 towards the front axle driveshaft and some are attached for 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 from the plates with differentiating pace, causing a torque transfer through the 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 involving the plates increases due to your generated shear within the fluid, slippage is reduced, the rear wheel spin is reduced along with the torque from your input shaft is transferred on the front.
A viscous coupling is usually set up 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 electrical power is transferred to just 1 axle. A single part of your viscous coupling is connected to your 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 makes it possible for 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 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 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 power to all wheels and lets them turn at diverse speeds while cornering. When excessive wheelspin happens on 1 from 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 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 deliver far more holding energy than set screw couplings without marring the shaft.
Set Screw Vibration-Damping
Precision Flexible Shaft Couplings
Set Screw Vibration-Damping Precision Flexible 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 Versatile Shaft Couplings
High-Misalignment Vibration-Damping Precision Flexible 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 manage higher twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications.
High-Speed Precision Flexible Shaft Couplings
That has a bellows amongst two hubs, these couplings handle all forms of misalignment and therefore are good for precision stepper and encoder motion-control applications.
High-Misalignment Precision
Flexible Shaft Couplings
High-Misalignment Precision Flexible 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 example 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 components 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 deal with four times extra speed than standard servomotor couplings.
Versatile Shaft Couplings
Set Screw Versatile Shaft Couplings
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 offer extra 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 Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings supply far 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 take care of larger angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re commonly 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 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 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 within the rubber will set off a metal detector, alerting you to the 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
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
That has 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 layout, these steel couplings transmit additional torque than other couplings of the same size.
Lightweight Versatile Shaft Couplings
Produced with lightweight nylon sleeves, these gear couplings call for 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 1 half of these couplings towards the other; there?¡¥s no make contact with amongst the elements, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.


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