Hex Brass Shaft Coupler for DC Motors 30mm Length (5-6mm)

Hex Brass Shaft Coupler for DC Motors — Overview

The Hex Brass Shaft Coupler is a precision mechanical adapter designed to join two rotational shafts, commonly used between DC motors and driven elements such as wheels, gears, pulleys, gearboxes or encoders. Manufactured from high quality brass with a hexagonal outer profile, this coupler delivers reliable torque transmission, accurate shaft alignment and long service life in robotics, automation and DIY mechanical assemblies.

Key Features

• High quality brass construction for excellent durability, corrosion resistance and wear performance
• Hex shaft design provides positive torque transfer with minimal slippage
• Standard compatibility for 5 mm and 6 mm round shafts
• 30 mm length offers adequate engagement for stable coupling and alignment
• Set screw fastening for secure, adjustable shaft grip (set screws typically included)
• Golden brass finish combines function with a professional appearance

Technical Specifications

• Type: Shaft coupler / adapter
• Material: Brass
• Profile: Hexagonal outer shape
• Compatible shaft sizes: 5 mm and 6 mm
• Length: 30 mm
• Fastening method: Set screws (typically included)
• Color: Brass (golden metallic finish)

Applications

• Coupling DC motor shafts to wheels, gears and pulleys
• Robotics and automation linkages
• Encoder shaft extension and alignment
• DIY projects involving rotational motion
• Small machinery and mechanical assemblies

Advantages of the Hex Brass Shaft Coupler

• Strong torque transmission suitable for small to medium loads
• Easy to install and adjust with common hex/Allen keys
• Fits standard shaft diameters used in many hobby and industrial motors
• Long lifespan provided by brass corrosion resistance and wear properties

Compatibility and Fit

This coupler is designed to accept 5 mm and 6 mm round shafts. The internal bore and set screw positions provide firm contact for common hobby DC motor shafts and encoder outputs. If your shafts have flats, splines or nonstandard profiles, check fit before installation.

Installation Tips

• Ensure both shafts are clean and free of debris before installation
• Align shafts carefully to avoid bending loads and reduce vibration
• Tighten set screws securely using the correct hex/Allen key size
• Avoid overtightening to prevent shaft damage

Note: Images are for illustration purposes only. Actual product size, screw type and appearance may vary slightly.