5×5mm Aluminum Rigid Coupling (Anodized Blue) is a precision shaft connector used to rigidly join two 5mm shafts—perfect for coupling a motor shaft to a lead screw, rod, or another shaft with maximum rigidity and low backlash. Made from durable aluminum alloy with a premium anodized blue finish, it provides reliable torque transmission for CNC, 3D printers, robotics, and automation projects.

Key Features

• Bore Size: 5mm × 5mm (same-diameter shaft coupling)

• Type: Rigid coupling for strong and stable connection

• Material: Aluminum alloy

• Finish/Color: Anodized Blue

• Reliable torque transfer with minimal play/backlash

• Secure fixation using set screws or clamp screws (depends on model)

• Compact, lightweight, corrosion-resistant

Specifications

• Coupling Type: Rigid Shaft Coupler

• Inner Diameter (Side A): 5mm

• Inner Diameter (Side B): 5mm

• Material: Aluminum

• Surface Treatment: Anodized

• Color: Blue

• Function: Joins two 5mm shafts for direct torque transmission

(Outer diameter, length, and screw type vary by manufacturer.)

Applications

• 3D printers: motor shaft to lead screw/rod connections

• CNC machines: axis coupling and shaft joining

• Robotics: shaft extensions and drivetrain connections

• Motor-to-encoder or motor-to-gearbox coupling

• DIY mechanical and automation projects

Used In

• Stepper motors with 5mm shaft (common in NEMA 17)

• Linear motion systems and Z-axis couplings

• Precision mechanical assemblies

Package Includes

• 1× 5×5mm Aluminum Rigid Coupling (Anodized Blue)