Product Description

In demanding power transmission systems, securing components to a shaft reliably and precisely is critical. Traditional keyed connections can introduce backlash, stress concentrations, and require precise machining. Keyless locking devices offer a superior alternative, and Apexcoupling, a specialist in couplings and drive components, provides high-performance keyless locking devices designed for exceptional holding power and ease of use.

Our keyless locking devices, also known as locking assemblies or locking discs, utilize a mechanical compression principle to create a zero-backlash, high-torque connection between a shaft and a hub or sleeve. By applying controlled clamping force from the outside via high-strength Grade 12.9 locking screws, the device forms a uniform, friction-based grip. This design eliminates the need for keyways, setscrews, or splines, thereby simplifying installation, reducing component stress, and enabling precise positioning.

Manufactured from high-grade S45C steel, our keyless locking devices are built for durability and reliability in tough environments like Manufacturing Plants, Farms, Construction, and Energy & Mining. They are available in a comprehensive range of sizes, with inner hole (bore) diameters from 6mm to 50mm and outer diameters from 16mm to 95mm. This makes our keyless locking devices versatile solutions for various shaft-hub connections. The allowable torque range is impressive, spanning from 6.3 N.m to 1120 N.m, with some models capable of handling axial forces, making them suitable for both torque transmission and thrust load applications.

Apexcoupling’s keyless locking devices offer several significant advantages. They allow for easy adjustment and repositioning, facilitate quicker assembly and disassembly for maintenance, and provide a concentric clamp that minimizes vibration and wear. Surface treatment options, including grinding, bluing, and nickel plating, enhance corrosion resistance for different operational environments. As experts in drivetrain solutions, we provide full customization support (OEM, ODM, OBM) to tailor these keyless locking devices to your specific shaft dimensions, torque requirements, or environmental needs.

Whether you are upgrading existing machinery, designing new equipment, or seeking a reliable replacement for traditional locking methods, our keyless locking devices represent a smart engineering choice. Backed by a 1-year warranty, they deliver the security and performance needed for critical connections.

For a secure, precise, and maintenance-friendly shaft-hub connection, choose Apexcoupling’s range of robust keyless locking devices.