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Flexible Shaft Couplings.

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Flexible Shaft Couplings

What are Flexible Shaft Couplings?

Flexible couplings, especially flexible shaft couplings are a cornerstone component in precision engineering, serving as a critical connecting element between two shafts. These couplings are meticulously designed to transmit torque while accommodating some misalignment, be it angular, parallel, or axial. Our flexible shaft couplings showcase a unique combination of flexibility and robustness, essential for maintaining the integrity and efficiency of your machinery.

How Does a Flexible Coupling Work?.

In the realm of mechanical engineering, the flexible coupler plays a pivotal role. They are not just connectors; they are the harmonizers of machinery. These couplings excel in scenarios where precision and reliability are paramount - from intricate robotics where they become a driveshaft flexible coupling to high-speed printing presses used as a flexible motor coupling to isolate vibrations keeping print tolerances tight.

In industries like aerospace and automotive, the efficacy of a flexible shaft coupler can mean the difference between optimal performance and mechanical failure. Their ability to compensate for misalignments and vibration while transmitting power efficiently makes them indispensable in complex machinery.

Shaft Coupling Material Composition and Benefits.

Our selection of flexible couplings is crafted from Aluminium 7075-T6, renowned for its strength and lightweight properties. This material, coupled with a Surtec 650 passivated finish, ensures durability and corrosion resistance, enhancing the lifespan of the couplings. Aluminium 7075-T6 offers the perfect balance of toughness and elasticity, making these couplings ideal for high-stress applications requiring both flexibility and strength rated up to 70,000 RPM.

Flexible Coupling Types & Sizes.

We offer a range of sizes in flexible couplings, with lengths varying from 9.5mm to 17mm. These come equipped with cup point grub screws for secure shaft fastening. With insertable shaft diameters ranging from a precise 1.5mm to a robust 5mm, these couplings are tailored for various precision applications.

Our customization doesn't end here; entirely dependent on the shaft materials you intend to couple, our entire range of grub screws is compatible allowing you to tailor the tip type to offer more friction or gentler pressure.


Q: What is the difference between a coupling and a flexible coupling?.

A: Couplings are mechanical connectors used for joining two shafts. While there are many types of couplings, a flexible coupling not only connects shafts but also accommodates angular misalignments and vibrations, making them ideal for applications where precision alignment is challenging.

Q: How do you join two shafts together?.

A: Joining two shafts together typically involves using a coupling. Flexible shaft couplings are fitted onto the ends of the shafts and secured with grub screws, allowing for high torque transmission and alignment tolerance.

Q: Why use a flexible shaft coupling?.

A: Flexible shaft couplings are used for their ability to compensate for shaft misalignment, absorb vibrations, and transmit torque efficiently, ensuring smooth operation and longevity of the machinery. They can also be used to isolate components from other machinery systems while still providing power transmission.

Q: What is the maximum rated RPM?.

A: Our range of flexible shaft couplings is designed to withstand up to 70,000 RPM, catering to a wide range of high-speed applications with exceptional performance and reliability.

Q: Can I use different types of grub screws in these couplings?.

A: While our couplings come with cup point grub screws, they are compatible with various types of grub screws. However, it's essential to match the screw type with the application requirements for optimal performance.

Bespoke Flexible Shaft Couplings Manufacture.

High precision, bespoke manufacture of Flexible Shaft Couplings to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.

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