6mm Aluminium Flange Coupler for Motor Shafts

Connect a 6mm motor shaft to your robot wheel or mechanism

The Botswiser 6mm Aluminium Flange Coupler is a mounting hub for connecting a compatible wheel or mechanism to a motor shaft. Its 6mm bore fits a matching shaft, while the 50mm mounting flange provides six base mounting holes for fastening your assembly.

Whether you are assembling a mobile robot or building a custom motor-driven mechanism, this coupler provides a compact connection between the shaft and the mounted part. Check your wheel’s mounting-hole pattern and shaft dimensions before ordering.

Key features

• 6mm shaft bore: designed for a matching 6mm motor shaft.
• Aluminium construction: listed coupler weight of 25g.
• Flanged mounting: 50mm flange diameter with six base mounting holes.
• Shaft fastening: M3 fastening screw hole with an included fastening screw.
• Base mounting: M4 mounting screw holes; three mounting nut-and-bolt sets are included.

Technical specifications

• Brand: Botswiser
• Material: Aluminium
• Bore inner diameter: 6mm
• Cylindrical hub outer diameter: 20mm
• Cylindrical hub height: 20mm
• Flange outer diameter: 50mm
• Flange base thickness: 4mm
• Total height: 24mm
• Fastening screw hole: M3
• Base mounting screw holes: M4
• Number of base mounting holes: 6
• Listed coupler weight: 25g

Compatibility and mounting

Use with a 6mm motor shaft and a wheel or mechanism with a matching flange mounting pattern. Bore size alone does not establish wheel compatibility. Verify the mounting-hole spacing, available shaft length and installation clearance before purchase.

Package includes

• 1 × Aluminium flange coupler
• 1 × Fastening screw
• 3 × Base mounting nut-and-bolt sets

Related wheels and couplers

Compare dimensions and mounting patterns before selecting related parts.

• 80mm nylon robot wheel
• 120mm cast nylon robot wheel
• 200mm cast nylon robot wheel
• 8mm aluminium flange coupler
• 6mm ABS flange coupler
• 8mm ABS flange coupler