AL-D Locking Device: The Precision Keyless Solution for Servo Motor and High-Cycle Applications

In applications demanding exceptional concentric accuracy, repeatability, and the ability to withstand frequent directional changes—such as servo-driven automation, robotics, and precision machine tools—the connection between the motor and the load is critical. A locking device provides a superior alternative to traditional keyed or set-screw mounts. Specifically, the AL-D Single Taper Direct Mounting Locking Device from Apex Coupling is engineered to deliver a rigid, backlash-free, and perfectly concentric connection, making it the ideal keyless locking device for demanding dynamic applications.

Engineered for Precision, Ease, and Reliability

The AL-D locking device utilizes an efficient single-taper design to create a powerful friction-lock connection between a shaft and a hub or bore. Its core advantage is the ability to achieve and maintain high coaxial accuracy over the long term. This is paramount for servo motors that undergo frequent start-stop cycles and rapid forward and reverse rotation, as any runout or misalignment can cause vibration, reduce positioning accuracy, and shorten component life.

This locking device significantly simplifies both design and maintenance. It eliminates the need for precise keyway alignment during the design phase and complex machining. Assembly and disassembly are straightforward, requiring no special tools, which allows for quick equipment maintenance and enables parts to be reused, effectively reducing long-term operational costs. Constructed from high-grade S45C steel, it ensures durability and reliable torque transmission.

Technical Specifications and Key Features

The AL-D locking device is designed as a robust, direct mounting type component with a straightforward yet highly effective tightening mechanism.

• High Torque Transmission: It offers a reliable allowable torque range, ensuring it can handle the dynamic loads typical in automated systems.

• Simplified Integration: As a compact keyless connecting device, it reduces the need for extensive machining on both the shaft and the connected element, allowing for faster design iterations and adaptations.

• Quality Assurance: Manufactured under ISO9001 and BV certification, this locking device guarantees consistent quality and performance. We offer full OEM, ODM, and OBM support with a Minimum Order Quantity (MOQ) of just 1 piece.

Ideal for Dynamic and Precision-Critical Setups

This locking device is specifically suited for environments where precision and reliability are non-negotiable. Its primary application is coupling servo motors and stepper motors to ballscrews, pulleys, gears, or other driven components in:

• CNC Machinery and Robotics

• Packaging and Pick-and-Place Automation

• Printing and Textile Equipment

• Any system requiring a rigid, repeatable, and maintenance-friendly shaft-hub connection

Secure Your Precision Drive with Apex Coupling

Choose the AL-D locking device to eliminate backlash, ensure perfect alignment, and simplify your mechanical designs. It represents a smart investment in the performance and longevity of your precision motion systems.

Ready to Specify a Precision Locking Solution? Contact our engineering team today with your shaft and bore dimensions to receive detailed specifications, 3D CAD models, and a competitive quotation for the AL-D locking device.