CLAMPEX® – Advanced Shaft-Hub Connections for Industrial Machinery
In modern industrial engineering, reliability, precision, and ease of maintenance are more important than ever. Traditional keyway connections are increasingly being replaced by advanced shaft-hub locking systems that offer higher torque transmission, zero backlash, and simplified installation.
Among the most respected solutions on the market are CLAMPEX® locking assemblies, widely used in power transmission systems, gearboxes, conveyors, industrial machinery, automation equipment, pumps, fans, and heavy-duty mechanical applications.
CLAMPEX® products provide a secure frictional connection between a shaft and hub without the need for keys, splines, pins, or additional machining.
What Is CLAMPEX®?
CLAMPEX® is a range of internal locking assemblies designed to create a backlash-free frictional connection between a cylindrical shaft and a hub.
The system works by tightening clamping screws that generate radial pressure between tapered rings. This pressure creates a highly reliable friction fit capable of transmitting both torque and axial loads.
The result is a strong, maintenance-friendly connection that eliminates many of the disadvantages associated with traditional keyway systems.
Why Choose CLAMPEX® Instead of a Keyway?
Many machine designers and maintenance engineers are replacing conventional keyed connections with CLAMPEX® locking assemblies due to their superior performance.
Zero Backlash
One of the biggest advantages is the complete elimination of play between shaft and hub.
This makes CLAMPEX® ideal for:
- Servo drives
- CNC machinery
- Positioning systems
- Packaging equipment
- Robotics
- Industrial automation
Higher Torque Transmission
Because the entire shaft surface participates in torque transmission, CLAMPEX® assemblies can often transmit significantly higher torque than conventional keyed connections.
Benefits include:
- Improved power transfer
- Reduced shaft stress
- Greater operational reliability
- Increased machine efficiency
No Keyway Machining Required
Traditional keyed systems require expensive machining operations.
CLAMPEX® eliminates the need for:
- Keyways
- Splines
- Cross pins
- Special shaft modifications
This reduces manufacturing costs and simplifies component replacement.
Easier Installation and Removal
Maintenance teams appreciate CLAMPEX® because assemblies can be installed and removed quickly without damaging shafts or hubs.
Advantages include:
- Reduced downtime
- Faster maintenance
- Lower service costs
- Simplified machine upgrades
Popular CLAMPEX® Series
CLAMPEX® KTR 130
One of the most widely used locking assemblies.
Features:
- Compact design
- Easy installation
- Excellent concentricity
- High torque capacity
Typical applications:
- Gearboxes
- Conveyor systems
- Industrial drives
- Mechanical transmissions
CLAMPEX® KTR 200
A versatile solution for demanding industrial applications.
Key advantages:
- Self-centering design
- High load capacity
- Reliable operation
- Long service life
Commonly used in manufacturing equipment and heavy-duty machinery.
CLAMPEX® KTR 201
Designed for applications requiring:
- Compact dimensions
- High positioning accuracy
- Precise shaft alignment
- Continuous industrial operation
CLAMPEX® KTR 250
Ideal for thin-walled hubs and lightweight mechanical structures.
Frequently found in:
- Modern machinery
- Lightweight drive systems
- Space-constrained installations
CLAMPEX® KTR 400
A heavy-duty solution developed for extremely high torque requirements.
Applications include:
- Mining equipment
- Steel mills
- Cement plants
- Energy production systems
- Large industrial drives
Industries Using CLAMPEX® Locking Assemblies
CLAMPEX® products are used across numerous industries:
Manufacturing
- Production lines
- Packaging machines
- Processing equipment
Power Transmission
- Gearboxes
- Couplings
- Mechanical drives
Material Handling
- Conveyor belts
- Rollers
- Automated transport systems
Agriculture
- Harvesters
- Feed systems
- Agricultural machinery
Energy and Heavy Industry
- Wind power equipment
- Mining machinery
- Industrial pumps
- Large fans
CLAMPEX® and Industry 4.0
As factories become increasingly automated, precision and reliability become critical.
CLAMPEX® locking assemblies support Industry 4.0 objectives by providing:
- Accurate positioning
- Reliable power transmission
- Reduced maintenance requirements
- Faster machine servicing
- Improved operational efficiency
These advantages help manufacturers reduce downtime and maximize productivity.
Key Benefits of CLAMPEX®
Industrial engineers choose CLAMPEX® because of:
- Backlash-free shaft-hub connection
- High torque transmission capacity
- Excellent concentricity
- Easy installation and removal
- No keyway machining required
- Reduced shaft stress
- Improved machine reliability
- Lower maintenance costs
- Long service life
- High operational safety
How to Select the Right CLAMPEX® Assembly
When choosing a locking assembly, engineers should consider:
- Shaft diameter
- Hub diameter
- Required torque
- Axial loads
- Installation space
- Operating conditions
- Maintenance requirements
Proper selection ensures maximum performance and service life.
Why CLAMPEX® Is a Preferred Choice in Modern Mechanical Engineering
The trend toward keyless shaft-hub connections continues to grow worldwide.
CLAMPEX® assemblies provide a reliable, efficient, and cost-effective alternative to traditional keyed systems. Their ability to transmit high torque while maintaining zero backlash makes them an excellent choice for modern industrial machinery.
Whether used in automation, manufacturing, power transmission, or heavy industry, CLAMPEX® locking assemblies help improve machine performance, reduce maintenance costs, and increase operational reliability.
Conclusion
CLAMPEX® locking assemblies represent one of the most advanced shaft-hub connection technologies available today. By eliminating keyways and creating powerful frictional connections, they provide higher precision, greater torque capacity, easier maintenance, and improved machine longevity.
For engineers, maintenance professionals, OEM manufacturers, and industrial buyers seeking dependable shaft-hub locking solutions, CLAMPEX® remains one of the industry's most trusted and proven technologies.