5mm‑9.525mm Rigid Clamp-On Coupling BORDSTRACT 20×25mm Aluminum Shaft

Description

Product Overview

The BORDSTRACT 5mm‑9.525mm rigid clamp‑on coupling is engineered for precision power transmission in compact mechanical systems. With a total outer diameter of 20 mm and a length of 25 mm, the unit accommodates bore sizes ranging from 5 mm up to 9.525 mm, providing a versatile fit for a wide array of motor shafts. Constructed from high‑grade aluminum alloy, the coupling offers an excellent strength‑to‑weight ratio, delivering durability while keeping the overall mass low. This lightweight design reduces rotational inertia, which in turn improves acceleration response and overall system efficiency. The aluminum material also provides natural corrosion resistance, extending the service life even in demanding environments.

Key dimensions are clearly defined: the coupling’s overall size is 0.98 × 0.79 × 0.79 inches, making it compact enough for tight installations yet robust enough to handle the torque requirements of typical 3D printer extruders, CNC spindle drives, and servo motor applications. The clamp‑on mechanism eliminates the need for set‑screws or additional fasteners, simplifying assembly and ensuring a repeatable, secure connection that minimizes misalignment and vibration.

Usage

Designed with versatility in mind, this rigid clamp‑on coupling finds its place in a broad spectrum of hobbyist and professional projects. In 3D printing, it connects stepper motor shafts to extruder drives, delivering smooth, consistent filament feed without backlash. CNC machine builders rely on its precision to link spindle motors to the tool carriage, ensuring accurate cutting paths and reduced wear on bearings. Robotics enthusiasts benefit from the low‑inertia characteristics, which allow rapid directional changes and precise motion control in articulated arms and mobile platforms.

Beyond these core applications, the coupling is suitable for any system that requires a reliable, lightweight connection between two rotating shafts. This includes DIY model builds, motor accessories for automation equipment, and even small‑scale industrial drives where space constraints and weight savings are critical. Its ability to handle moderate torque loads while maintaining high rotational speeds makes it an ideal choice for servo motor setups in both educational and prototyping environments.

Why Choose Us

Choosing BORDSTRACT means selecting a brand with a proven track record in delivering high‑quality power transmission components. Each coupling undergoes rigorous quality control testing to verify dimensional accuracy, material integrity, and performance under load. The aluminum alloy formulation is selected for its balance of strength, machinability, and resistance to environmental factors such as moisture and dust.

Our commitment to customer satisfaction extends beyond the product itself. We provide comprehensive technical support, including installation guidance, compatibility advice, and troubleshooting assistance. Should you encounter any issues, our responsive after‑sales team is ready to help, ensuring minimal downtime for your projects. Additionally, the coupling is backed by a warranty that reflects our confidence in its durability and performance.

By offering a wide range of bore size options within the same 20 mm × 25 mm form factor, we enable you to standardize on a single coupling design across multiple machines, simplifying inventory management and reducing overall costs. The combination of precise engineering, material excellence, and dedicated support makes this coupling a reliable choice for demanding applications.

Key Features

• Lightweight aluminum alloy construction reduces rotational inertia for faster response.
• Clamp‑on design eliminates set‑screws, enabling quick, tool‑free installation.
• Accommodates bore sizes from 5 mm to 9.525 mm, offering broad compatibility.
• Corrosion‑resistant material ensures long‑term reliability in harsh environments.
• Dedicated technical support and warranty provide peace of mind for users.

FAQ

What shaft sizes can this coupling accommodate?

The coupling is designed to fit shafts with bore diameters ranging from 5 mm up to 9.525 mm, covering a wide variety of motor and spindle specifications commonly used in 3D printers, CNC machines, and servo applications.

Is any special tool required for installation?

No special tools are needed. The clamp‑on mechanism allows you to simply place the coupling over the two shafts and tighten the outer collar until a secure, slip‑free fit is achieved. This tool‑free approach speeds up assembly and reduces the risk of over‑tightening.

Can this coupling handle high torque loads?

While the coupling is optimized for light to moderate torque applications typical of hobbyist and small‑scale industrial equipment, its aluminum alloy body provides sufficient strength for most 3D printer extruders, CNC spindle drives, and servo motor setups. For extremely high‑torque scenarios, a larger or steel‑based coupling may be more appropriate.

What warranty does BORDSTRACT offer on this product?

BORDSTRACT provides a one‑year limited warranty covering manufacturing defects and material failures. If you encounter any issues within the warranty period, contact our support team for a replacement or repair solution.

Is this coupling compatible with both metric and imperial shaft standards?

Yes. The coupling’s bore range (5 mm‑9.525 mm) corresponds to common imperial sizes of 0.2 in‑0.375 in, allowing it to be used with both metric and imperial shaft specifications without the need for additional adapters.