【Wide Application】This product can be used to connect mecanum wheels and power motors, and is suitable for TETRIX, FRC, FIRST, WRO and other world robots. It has a wide range of applications and can meet different needs. 【 to Use】The product is manufactured in accordance with strict quality standards and quality control, with good material, stable performance, and good safety performance. It can be used with confidence. 【Quality Service】 is our top priority. If you have any questions, you can always us and customer service response within 12 hours. 【Strictly Manufactured】 The coupling Shaft Hubs Wheels through a strict manufacturing process, which can perfectly match the industrial robot and is a necessary part of the industrial robot. 【Reasonable Design】The product is professionally manufactured, and the D-shaped hole is designed to effectively prevent the motor shaft from slipping. It is a reasonable choice for industrial robot parts. Specification:
Item Type: Wheel Shaft Coupling
Material: Metal
Inner Diameter: Approx. 6mm / 0.2in (D-shaped hole)
Outer Diameter: Approx. 55mm / 2.2in
Hole Length: Approx. 25mm / 1in

Package List:
1 X Wheel Shaft Coupling

Note:
Due to manual measurement, there is a slight error, thank you for your understanding.