11mm H13*D18 Rigid Flange Coupling Motor Guide Shaft Coupler 2PCS for DIY Parts

2PCS 7mm Dia H13*D16 Rigid Flange Coupling Motor Guide Shaft Coupler Connector

6mm Inner Dia H12*D10 Rigid Flange Coupling Guide Shaft Coupler Motor DIY 4Pcs

4Pcs 6Mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft A

2pcs 8mm ID H13*D16 Rigid Flange Coupling Motor Guide Shaft Coupler Connector

5mm Inner Dia H12*D10 Rigid Flange Coupling Guide Shaft Coupler Motor DIY 4Pcs

3-12mm Rigid Flange Coupling Motor Guide Shaft Coupler Bearing Seat Connector

12mm Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connectors