Befenybay 2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D20 L25 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor（5x8mm）

I tried the other type of couplers that look more like a spring on the Z axis lead screws on my Ender 5 Plus but they stretched out and messed everything up. Got rid of those and replaced them with these. These work great and support the weight of the bed with ease. They are not really flexible so these will not solve any Z banding issues but they do stay together and don’t expand like the other type did. They don’t get 5 stars from me because of lack of flexibility but they are decent enough to get 4 stars.

Such a simple upgrade elevated the z axis binding o had after upgrading to dual z axis motors

I like these type of coupler alot better than the set screw type because the set screw type you can never get them exactly on center. with these friction type they stay on center and nothing damages the lead screw

After 3 months of lite use, they completely separated. The rubber-type press fit seems to be dried out and has lost its flexibility.

Definitely not a precision product, but the work for hobby applications.

Il prodotto è arrivato da UK, un pò caro e spedizione lenta, ma il prodotto fa molto bene il suo lavoro, acquisti per stampante 3d. Consigliato come upgrade.

Good quality, much better than stock couplings.

If your planning to buy this to solve z axis wobble, DONT! The hole is not centered and made prints come out worse than ever before! Poor manufacturing quality and not even worth $1 Look elsewhere!

one bolt came jammed and the head was already cammed out, the second one didnt have the relief cut all the way through so tightening is impossible

works great for helping z axis stress. Printer moves much smoother now after this and a dual axis upgrade