Shrink Disc

Precision Shrink Discs

Precision shrink discs provide a reliable, backlash-free method of connecting hollow shafts to solid shafts without the need for keys, splines, pins, or interference fits. Using a friction-locking principle, shrink discs generate high clamping forces that securely transmit torque while allowing easy installation, removal, and maintenance.

Unlike traditional keyed shaft connections, shrink discs eliminate backlash and reduce stress concentrations within the shaft. This improves positioning accuracy, reduces wear, and extends the service life of connected drivetrain components. Their compact design also allows machine builders to maximise torque transmission while minimising installation space.

Designed for industrial power transmission applications, shrink discs are particularly suited to mounting hollow shaft gearboxes, conveyor drives, pulleys, rollers, sprockets, and rotary equipment. The self-centring clamping action provides excellent concentricity and reliable torque transmission even under dynamic loading conditions.

Available in a wide range of sizes and torque capacities, shrink discs support various shaft diameters and application requirements. The simple bolt-tightening installation process enables rapid assembly and disassembly without damaging shafts or hubs, reducing maintenance downtime and simplifying equipment servicing.

Micromech supplies precision shrink discs as part of a complete motion control and power transmission solution portfolio for OEMs, machine builders, and industrial automation applications throughout the UK.

Key Features

• Backlash-free shaft-to-hub connection
• High torque transmission without keys or splines
• Friction-locking clamping technology
• Compact space-saving design
• Self-centring installation
• High concentricity and running accuracy
• Suitable for hollow shaft applications
• Quick installation and removal
• Reusable design
• Reduced shaft stress concentrations
• Reliable performance under dynamic loads
• Designed for industrial power transmission applications

Applications

Precision shrink discs are designed for applications requiring secure, backlash-free torque transmission and simplified shaft assembly.

Typical applications include:

• Hollow shaft gearboxes
• Conveyor drive systems
• Material handling equipment
• Packaging machinery
• Mining and quarrying equipment
• Food and beverage processing machinery
• Pumps and mixers
• Industrial fans and blowers
• Rotary positioning equipment
• General industrial automation machinery

Need Help Selecting the Right Shrink Disc?

Micromech supplies shrink discs, shaft couplings, gearboxes, servo systems, and complete motion control solutions for industrial automation applications.

Our engineers can help specify the right shaft locking solution for your application. Contact Micromech.