3D printer Stepper Motor Flexible Coupling Coupler /Shaft Couplings 5 mm*8mm**25 mm

1) Integrated structure, with high-strength aluminum alloy

2) Colloid can absorb vibration, parallel, angular, misalignments and shaft end-play

3）Spring-loaded design, with cushioning effect

4）For encoder/ micro-motor

5）set screw type