The Keyless Locking Device: A Superior, High-Torque Solution for Rigid Shaft-Hub Connections

In the realm of power transmission, achieving a secure, precise, and maintenance-free connection between a shaft and a hub is fundamental. Traditional methods like keys, splines, or shrink fits often introduce stress concentrations, backlash, and complex assembly procedures. The modern solution is a keyless locking device. This advanced mechanical component creates a powerful friction-lock connection, transmitting torque directly without the need for keyways. The A2 Double Cone Type Mechanical Locking Device from Apex Coupling is engineered to deliver exceptional clamping force and reliability for the most demanding industrial applications, serving as a high-quality alternative to brands like KTR200 Z2.

Advanced Mechanical Principle for Maximum Performance

The superior performance of this keyless locking device stems from its sophisticated Double Cone Type + Mechanical (Wedge Type) tightening method. This design utilizes interacting conical surfaces and precision wedges. When the assembly bolts are tightened, these components work in unison to generate immense, uniformly distributed radial pressure. This pressure creates a true keyless connection that is both incredibly rigid and self-centering, ensuring perfect concentricity between the shaft and hub.

Constructed from high-grade S45C steel, this device offers exceptional strength and durability. It is designed as a straight-type, non-self-centering unit, providing a straightforward and robust solution for a vast range of standard connections. The ability to transmit an allowable torque range from 250 to 20,000,000 N.m highlights its versatility, catering to applications from small conveyors to massive mining and energy sector machinery.

Technical Specifications and Broad Compatibility

This keyless locking device is built to standard dimensions with extensive size coverage, ensuring wide applicability.

• Comprehensive Size Range: Available for inner hole diameters from 18mm to 1000mm, with corresponding outer diameters from 47mm to 1110mm. This broad range eliminates the need for custom machining for most standard shafts and hubs.

• Versatile Industrial Application: Its robust design makes it suitable for diverse sectors including Manufacturing Plants, Food & Beverage Factories, Construction, Energy & Mining, and Printing. As a keyless locking device, it is ideal for connecting gears, sprockets, pulleys, and couplings to shafts in pumps, fans, mixers, and conveyors.

• Customization and Quality Assurance: We offer full OEM, ODM, and OBM support, allowing for modifications to meet specific requirements. Every device is backed by a 1-year warranty and is manufactured with rigorous quality control.

Simplifying Design and Maintenance

By eliminating keyways, this locking device simplifies hub and shaft design, reduces machining costs, and prevents common failure points like key wear and fretting corrosion. Its mechanical design also allows for easier installation, repositioning, and disassembly compared to permanent fixation methods, greatly simplifying maintenance and component changes.

Choose Apex Coupling for Reliable Power Transmission Solutions

As a specialist in drive components, Apex Coupling provides this high-performance keyless locking device as part of our commitment to offering superior connection technology. It is a reliable, high-strength component designed to enhance the performance and longevity of your drive systems.

Ready to Upgrade Your Shaft Connections? Contact our engineering team today for detailed dimension tables, CAD models, and a competitive quotation for our A2 type keyless locking devices.