Shrink Discs are flange-mounted external clamping devices designed for the backlash-free mounting of hollow shafts and hubs onto solid shafts. They offer a high-performance alternative to conventional connection methods such as shrink fits, keyed joints, keyways and polygonal shaft connections. By creating a direct frictional connection between the shaft and the hub, Shrink Discs provide exceptional concentricity, high load capacity and long-term operational reliability.

Unlike internal Locking Assemblies, Shrink Discs apply the clamping force externally to the hollow shaft or hub. The Shrink Disc itself does not transmit torque; instead, it generates the radial clamping pressure that creates a secure frictional connection between the mating surfaces. This enables the reliable transmission of high torque, axial and radial forces, as well as bending moments, without backlash or shaft damage.

Shrink Discs are completely wear-free and maintenance-free while offering outstanding fatigue strength under alternating loads. They are available in two-piece and three-piece designs, stainless steel versions and application-specific custom solutions. As the official Hungarian partner, BIBUS Kft. provides engineering support for product selection, sizing and the optimization of shaft-hub connections in demanding industrial applications.

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Key Features

✔ External frictional shaft-hub connection

✔ Backlash-free mounting

✔ High torque transmission

✔ Transmits axial and radial forces

✔ Suitable for high bending moments

✔ Excellent concentricity

✔ Wear-free and maintenance-free

✔ Two-piece and three-piece designs

✔ Stainless steel versions available

✔ Engineering support from BIBUS Kft.

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Why Choose Shrink Discs?

✔ Replace shrink fits and keyed connections

✔ Fast installation and removal

✔ Excellent fatigue resistance

✔ High operational reliability

✔ Wide range of standard sizes

✔ Custom-engineered solutions available

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What Problems Do They Solve?

✔ Mounting hollow shafts

✔ Eliminating backlash

✔ Transmitting high torque

✔ Handling axial and radial loads

✔ Withstanding high bending moments

✔ Improving the reliability of industrial drive systems

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How Can We Help?

Our engineers support you with:

• Shrink Disc selection
• shaft-hub connection sizing
• torque and load calculations
• hollow shaft drive applications
• replacement of conventional connection methods
• custom engineering solutions