Blue D20 L25 Aluminium Plum Flexible Shaft Coupling Coupler For 3D Printer CNC Machine And Servo Stepped Motor

Size:L25mm x D20mm( L*D) 
Diameter: we have all common one in market, just let us what you want
Material: Aluminum alloy, polyurethane 
Type: Plum shaped

Features:

• Super torque can absorb vibration, appropriate a large torque transmission.
• High hardness,Durable,and excellent response,not easy to loosen
• Flexibility of coupling shaft removes stress between the motor and driving components
• The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc