Shaft Couplings

Sorts of Couplings
Category: Couplings
Write-up Tags:Couplingcouplingsdiaphragm couplingsdisc couplingsgear couplingsgrid couplingsjaw couplingsmaterial flexing couplingsmechanical flexing couplingsroller chain couplingssleeve couplingstire couplingstypes of couplings
Coupling fall into two major categories: Materials Flexing and Mechanical Flexing. The material flexible types obtain their versatility from stretching or compressing a resilient materials, which include rubber, or in the flexing of thin metallic discs or grid. Materials flexing couplings will not require 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 require lubrication.

Materials Flexing Couplings
Material flexing couplings commonly tend not to need lubrication and operate in shear or compression and therefore 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 really a materials flexing coupling that transmits torque thru compression of an elastomeric spider insert placed amongst two intermeshing jaws.
Flex component is generally made from NBR, polyurethane, Hytrel or Bronze
Accommodates misalignment
Transmits torque
Utilised for torsional dampening (vibration)
Low torque, basic purpose applications
– Sleeve Coupling
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The sleeve coupling transmits very low to medium torque between connected gear in shear through an elastomeric insert with male splines that mate with female hub splines. The insert material is usually EPDM, Neoprene or Hytrel as well as the insert is usually a 1 or two piece layout.
Reasonable misalignment
Torsional dampening (vibration)
End float with slight axial clearance
Minimal to medium torque, common goal applications
– Tire Coupling
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These couplings possess a rubber or polyurethane element connected to two hubs. The rubber component transmits torque in shear.
Lowers transmission of shock loads or vibration.
Large misalignment capacity
Easy assembly w/o moving hubs or connected equipment
Moderate to substantial speed operation
Wide array of torque capacity
– Disc Coupling
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The disc coupling?¡¥s principle of operation has the torque transmitted via flexing disc elements. It operates by way of tension and compression of chorded segments on the widespread bolt circle bolted alternately in between the drive and driven side. These couplings are typically comprised of two hubs, two discs packs, as well as a center member. A single disc pack can accommodate angular and axial misalignment. Two disc packs are needed to accommodate parallel misalignment.
? Permits angular parallel and axial misalignment
? Can be a accurate limited finish float style and design
? A zero backlash design and style
? Large velocity rating and balance
– Diaphragm Coupling
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Diaphragm couplings utilize a single or perhaps a series of plates or diaphragms for the flexible members. It transmits torque in the outside diameter of the flexible plate on the within diameter, throughout the spool or spacer piece, then from inside to outside diameter. The deflection with the outer diameter relative on the inner diameter is what takes place when the diaphragm is subject to misalignment. By way of example, axial displacement attempts stretch the diaphragm which success within a mixture of elongations and bending of the diaphragm profile.
? Allows angular, parallel and substantial axial misalignments
? Utilized in higher torque, higher 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 volume of torque as well as the highest amount of torque inside the smallest diameter of any flexible coupling.

Each and every coupling consists of two hubs with crowned external gear teeth. The hubs mesh with two internally splined flanged sleeves which have been bolted with each other. Gear couplings accommodate angular and axial misalignment through the rocking and sliding with the crowned gear teeth towards the mating sleeve teeth. Parallel misalignment is accommodated by possessing two adjacent hub/sleeve flex factors. Gear couplings demand periodic lubrication depending on the application. These are delicate to lubrication failures but when appropriately installed and maintained, these couplings have a services daily life of 3 to 5 years and in some cases they are able to last for many years.
– Grid Couplings
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Grid couplings include two radially slotted hubs that mesh with a serpentine strip of spring steel the grid supplies torsional damping and flexibility of an elastomer but the strength of steel. Grid couplings transmit torque and accommodate angular, parallel and axial misalignment from 1 hub towards the other by way of the rocking and sliding of a tapered grid in the mating hub slots. The grid cross section is generally tapered for much better hub get hold of and simpler assembly. As there is certainly motion in between contacting hub and grid metal parts, lubrication is required.
– Roller Chain Coupling
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Roller Chain form couplings include two radially sprocketed hubs that engage a strand of double pitch roller chain. Chain couplings are utilised for minimal to reasonable torque and speed applications. The meshing in the sprocket teeth and chain transmits torque as well as the connected clearances accommodate angular, parallel and axial misalignment.

Chain couplings call for periodic lubrication based on the application. The lubrication is commonly brushed onto the chain and a cover is employed to help continue to keep the lubrication about the coupling.
To understand more about each of the various kinds of couplings, visitthe EP Coupling Webpage.
Mechanical Power Transmission ¡§C Shaft Coupling substitute technological innovation.
Replaces Spicer, Lovejoy, Beam, Bellows and Jaw variety shaft couplings
EP Coupling may be the hottest in shaft coupling style, beam, bellows and jaw couplings all function at substantial pace but lower angle of misalignment.
About the other finish universal joints are able to manage increased quantities of misalignment but at lower speeds and frequent upkeep.
EP Coupling being a hybrid flexible coupling can do both.
Improving on existing coupling engineering we deliver several different versions which enables a 0 to 25?? operational angle of utilization
No inner components ¡§C No bearings to become frequently lubricated and change , this saves you time and money.
A single Piece style usually means no broken yokes or hubs.
High speed- Runs at up to 7000 RPM
Torsionally rigid at low angles of misalignment
Scalable ¡§C the EP unit may be scaled up or right down to suit personal purchaser needs.?
Customizable ¡§C Possess a precise form/function the spring/ball settings can be changed to fit most applications.
Distinctive shaft varieties or sizes, we do AGMA/ANSI, SAE, & DIN bore/keyway and spline bore?¡¥s.
Being manufactured from two counter wound springs signifies it absorbs shock force without damage
Spring style will allow greater angle of usage without damaging elements?
ISO9001 2007 manufactured
The patented EP style and design allows for larger angle of usage without deformation with the torque transfer seen with Universal Joints, giving the performance of the Universal joint without the constant upkeep.
So how does it operate? The design is quite simple, the sets of springs are counterwound so 1 tightens while another loosens and visa versa.
This allows the coupling to operate in both forward and reverse.
Its simplicity doesn?¡¥t finish there, the only thing during the center in the coupling is usually a single ball bearing this allows the coupling to pivot allowing for maximum flexibility, this implies no bearings.
Bearings are a constant upkeep issue, they cannot run in harsh environments like water, mud, sand, dust and dirt as any intrusion by any of those elements leads to rapid failure.
So no bearings implies no continual upkeep or worse substitute.
One particular piece 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 far better The flexible coupling is powered from the springs, but because it is a pair of springs it effectively is usually a metal bar, add the ball bearing it turns into a versatile metal bar.
So this signifies much more torque and still have the flex that would destroy a standard universal or continuous velocity joint.
Large speed/low velocity ¡§C Now flex coupling engineering is split into 2 main areas, high speed, reduced torque, small angle of misalignment and decrease speed, higher torque, larger angle of misalignment.
Different couplings applications, same product ¡§C Flexible/High speed couplings are Beam couplings, elastomeric, bellows couplings and jaw sort 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 amount of torque these flex couplings can manage is quite small.
EP?¡¥s flexible coupling remains torsionally rigid at reduced angles at large speed, with far more torque than say a standard beam coupling, using the added flexibility if needed.
Reduce pace couplings like universal joints can function at high torque and larger degrees of misalignment but they have inner parts that need to become consistently maintained.
If not greasing for lubrication and bearing substitute as well as the angles of misalignment they will perform at is constrained as well, as too much will lead to bearing failure.
Our flex coupling can meet the higher torque demands as well as the increased flexibility while needing no maintenance as you would have to with using universal joints.
One product multiple uses. Why would you use distinct products if you didnt need to when 1 product will do it all, a no servicing, higher velocity, substantial torque, larger angle of misalignment capable versatile coupling.
Three models and counting ¡§C To date we have 3 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 fit your equipment.
We want to operate with you, so get hold of us and lets operate 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 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 pace. The silicone fluid resists the shear generated in it from the plates with differentiating pace, causing a torque transfer from your faster spinning axle towards the slower spinning axle. Therefore, slight speed difference is required for torque transfer.
If the rear wheels and driveshaft are slipping and turning faster than the front, friction concerning the plates increases due towards the generated shear in the fluid, slippage is reduced, the rear wheel spin is reduced as well as the torque in the input shaft is transferred for the front.
A viscous coupling could be put in 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 a single axle. 1 part with the viscous coupling is linked for the driving axle, another part is linked to your 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 enables 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 by using a slight delay, causing sudden change during 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 power to all wheels and lets them turn at distinct speeds while cornering. When excessive wheelspin occurs on 1 with the axles, viscous coupling locks the differential and equalizes the speeds of each 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 Flexible Shaft Couplings
Clamping Precision Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings present more holding energy 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 offer a lot 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 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 flexible center that decreases vibration and compensates for substantial 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 Versatile Shaft Couplings
That has a bellows involving two hubs, these couplings take care of 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 a lot more misalignment than other precision couplings?auseful for low-torque, high-precision applications including instrumentation and motion control.
Electrically Isolating Servomotor
Precision Versatile 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 Flexible Shaft Couplings
Connect shafts and ball screws to high-speed servomotors and stepper motors?athese shaft couplings deal with 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 Versatile Shaft Couplings
Designed to grip evenly around your shaft, these couplings present extra holding 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 daily life 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 deliver much 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 manage higher angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they’re frequently applied 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 flexible spring steel wraps around the teeth of the two 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 inside the rubber will set off a metal detector, alerting you towards the problem.
Cleaned and Bagged Versatile
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 components on your shafts by reducing vibration and shock.
High-Torque Flexible Shaft Couplings
Which has a rugged roller-chain style, these couplings supply excellent torque and angular misalignment capacities.
Ultra-High-Torque Versatile Shaft Couplings
Having a rigid gear style and design, these steel couplings transmit more torque than other couplings of the same size.
Lightweight Flexible Shaft Couplings
Made with lightweight nylon sleeves, these gear couplings demand 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 particular half of these couplings for the other; there?¡¥s no speak to involving the parts, so they won?¡¥t wear. Couplings compensate for angular and parallel misalignment.


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