The ASK slot coupling is a solution for equalizing all kinds of offset. Its unique slit structure once revolutionized the coupling industry – over the years, this well established solution has come a long way and now represents the ideal solution for installation situations that involve misalignment or high levels of resonance. Not only does the one-part design ensure absolute stability at the highest speeds (>30,000 rpm) and a low mass moment of inertia, but it also enables maximum torsional stiffness to be achieved in the face of dynamic load changes.

In addition to our standard product range, numerous special versions are also available. Because we are a flexible company, we can offer you prototypes and small batches. We will be happy to advise you and find exactly the right solution for your application. Simply contact us and we will be glad to assist you. With more than 25 years’ experience in the field of drive technology, ABSSAC is the perfect partner for your needs.

These are pin-bushing type couplings whose body is made of aluminum alloy. Backlash is kept extremely low by combining high-precision pins with dry metal.

These couplings have simpler designs that sandwich a rubber buffer (nitrile rubber) between two hubs. The hub is lightweight, being made of aluminum alloy. The simple construction sandwiches a spider (rubber buffer) between hubs, so the coupling is easily mounted or removed by moving the device in the axial direction. Mounting on a shaft is easy. Simply hold a straight-edge to the hub periphery to center it.

These couplings absorb vibration and have extremely low reaction force from mounting misalignment, thanks to the use of a plastic boot made of resin with excellent elastic properties (polyester resins). They are compact and lightweight, since the aluminum alloy hub and boot are designed with a unitised construction. Thanks to the unitised construction, they are easy to mount and remove.

The latest product in the range of flexible couplings. It is an allrounder and provides very high resonance damping performance.

• Zero backlash
• High flexibility
• RoHS-compliant
• 0.5 to 12 Nm
• High damping factor

The jaw coupling convinces by its versatile application options, robust design and damping features.

• Equalizes offsets in the event of shaft misalignment
• Secure transmission of °torques
• Damping capabilities in the event of resonance problems
• High torsional stiffness
• Large variety of mounting options

The Servoflex couplings are available in a variety of models, characterised by high flexibility and high torsional stiffness.

Precise positioning at high speeds.

A low cost flexible shaft coupling addressing the requirement for a high torsional stiffness, low cost, zero backlash, single piece construction, beam style flexible shaft coupling.

To achieve these extraordinary parameters, the budgetbeam shaft coupling utilises a very efficient helical beam configuration. The new Budgetbeam shaft coupling provides zero backlash and constant velocity torque transmission characteristics with excellent performance and reliability. Additionally, low radial bearing loads and low inertia are also advantages of the new design.

NEWS - Sizes 19 to 48 are now in stock, bored and keyed and ready to be delivered

These are low cost, no fuss shaft couplings. The JAW shaft couplings are available in steel, cast iron and aluminium and can come with ATEX approval if requested. To suit shaft sizes from 6mm to 100mm or supplied pilot bored.

The curved jaw coupling design consists of an elastic “spider” and two hubs. The spider, made of an advanced polyurethane material, provides dampening of impulse loads, minimizing shock to the motor and other sensitive equipment.

35 years of product knowledge combined with a large stock of Sure-Flex Couplings and Sleeves provides a great basic shaft coupling solution.

With knowledgeable staff always available, we stock and supply the Sure-Flex® elastomeric shaft coupling. The basic coupling uses two cast hubs available prebored or pilot bored and  a proven centre element produced from a elastic polymer, to  compensate for ardous shaft misalignments.  The proven product delivers reliable torque transmission whilst simultaneously dealing with shock and vibration.

The New Spinplus - Light and slim, it is the ideal precision coupling for highly dynamic applications. Whether it is to be precisely positioned, assembled or measured the new Spinplus is the ideal coupling solution.

Lowest moment of inertia and extremely compact - When developing the Spinplus, the main focus was to achieve the lowest possible moment of inertia for the coupling. The unique function of the internal element manufactured through the modern MIM process, allows displacement compensation from one plain.

When the application requires a direct and solid shaft connection and that  shaft misalignments during operation are minimal, then the ABR solid or rigid type couplings can be used. To suit shafts from 6mm up to 50mm in diameter as standard.

A solid compression-type coupling or rigid coupling as it is sometimes termed has no flexibility but can effectively be used to connect two shafts to make a permanent joint. The solid coupling is usually designed to be capable of transmitting the full torque load capacity of the shaft.

When we look at custom or specialist shaft couplings, it is important to remember that it does not always mean a custom price; it can sometimes mean a cost saving. When looking at Flexible Solutions - Flexible Couplings - Flexured U-Joints, one of the greatest advantages of the Helical Shaft coupling product is the ease in which it can be adapted from a standard and into a cost effective, multi-functional bespoke design. It is the perfect solution where flexibility is required for critical applications.

Metal bellows shaft couplings deliver, high torsional rigidity, due to the bellows’ radial rigidity and low side thrust due to the bellows lateral flexibility.

Other coupling types have either low windup or low side thrust, but not both. Precision motion control applications require mechanically tight systems, especially between motors, driven loads, and feedback devices, to ensure accurate positioning. Such systems often require shaft couplings that are both torsionally rigid, to accurately transmit rotational position and laterally flexible to accommodate shaft misalignment.

Form-Flex® disc style couplings enable high torque transmission whilst simultaneously compensating for angular, parallel and axial shaft misalignment.

A disc coupling is primarily a high performance motion control shaft coupling designed to transmit torque, whilst accommodating for shaft misalignment. Typical applications include Servo Motor connection . The disc coupling designs can handle speeds up to 8500 RPM, using either the single disc set style or double disc set style. Higher rotational speeds can be achieved via balancing and design modifications if required.

A universal joint is a mechanical device that allows two shafts not in line with each other limited freedom of movement in any direction whilst transmitting rotary motion.

Available in alloy steel, stainless steel or special materials, the single joint configuration can accept up to 25 degrees of angular misalignment where as the double joint designs can accept up to 50 degrees of shaft misalignment.  Model designs can include needle bearings, hardened bushes or plain pin, depending on torque and speed requirements.


With all of our customers, Abssac strives to keep them happy.
When it comes to Shaft Couplings for light to heavy duty industrial applications, Abssac is the place to come for fast delivery, keen prices and knowledgeable sales staff . Beam, Jaw, Elastomeric, Solid and Universal joints are our speciality.

So if you are a user of shaft couplings, give us a call to see how we can make you feel groovy...

Shaft Couplings

Specifying the right flexible shaft coupling for an application can be a technical challenge for the engineer, particularly as there are also so many designs on the market.  Shaft size, torque capability, angular and parallel shaft misalignment, not to mention material and attachment, all add to the myriad of parameters that narrow down choice.

At Abssac, we pride ourselves on our experience in the specification of shaft couplings whether they are miniature or Industrial. We have a 30 year plus supply chain behind us, to ensure correct product specification. Whether a retrofit part or a new application, our engineers can help you ensure the product choice is right. In many cases our engineers have worked closely with customer engineers to optimise shaft coupling designs.

Perhaps the next time you have a rotary shaft coupling application or just reviewing your current suppliers why not give Abssac a call. 01386 421005


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