Reading this post, I'll test it as I needed to order other parts on Mouser.

The price of this part is 3.10€ (Mouser link) and the reference is EC11E183440C.

Let's try it !

After installation, it's working quite well but I don't have any reference beetween the standard one. By hand, it seems that it's more fluid for the movement. We'll see on long term !

I wired it like explained on the standard uBitx schematics, and it seems that it's inverted in the encoder clockwise.

So, instead of unsoldering it (which was not that easy to solder the first time), I decided to change the pinout in the firwmare (KD8CEC firmware) in the file ubitx.h on line 214.

Before :

#define ENC_A        (A0)
#define ENC_B        (A1)

After :

#define ENC_A        (A1)
#define ENC_B        (A0)

No it's working fine.