8mm new aluminum spacer (hub) with key - 18033

This 8mm new aluminum spacer (hub) is a new and special spacer. It is produced to simplify the wheel’s structure. The spacer hub is the coalition of spacer and hub, so you do not need to buy another hub to connect the motor and the wheel. The aluminum spacer hub with key and screw hole is very convenient whether you connect your motor and wheel directly or flexible the shaft by screw. And the aluminum material make the spacer hub more powerful and strong.

Key Features 
• Material: Aluminum-alloy
• Outside diameter: 57mm
• Inside diameter: 8mm
• Net weight: 141g
• Sold in individually