Flexible Clamp Jaw 3D Printer Shaft Coupling CNC S... – Grandado Spider Material (Elastomer) Uses T-PUR, Longer Service Life Super Torque: Can Absorb Vibration, Appropriate a Large Torque Transmission. Material: Using Aviation Aluminum with corrosion resistance High Hardness, High Precision, Anodized Surface Treatment, Strong and Durable. Aluminum Coupler 18mm Sinoblu Aluminium Flexible Jaw Couplings 14mm To 14mm Diameter 40mm Length 66mm Flexible Shaft Coupling Coupler Joint Connector For 3D Printer CNC Router Engraving Drilling Milling Machine Flexible Shaft Coupling 18mm CNC Motor Jaw Shaft Coupler Flexible Coupling Conn... – Vicedeal High Hardness,Durable,and Excellent Response,Not Easy to Loosen Product Specification: Product Name: Shaft Plum Coupling Type: Plum Shaped Shaft Usage: 18mm to 18mm / 0., 71inch to 0., 71inch Size: L66mm x D40mm/2., 6inch x 1., 57inch( L*D) Material: Aluminum Alloy,Polyurethane Weight: 173g The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc Package: 1 x Shaft Plum coupling Sinoblu Aluminum Flexible Jaw Couplings 14mm To 14mm To 19mm Diameter 40mm Wide Range of Usage: Flexible Disc Couplings is Suitable to Offset Axial, Radial and Angular Displacements and Dampen Vibrations and Torque Shocks for 3D Printer DIY Encoder CNC Router Machine Servo Stepped Motor and Engraving Drilling Milling Machine