3D Printer CNC Parts Linear Bearings Set for JGAurora A5/A5S/A1/A3S LM08UU Bearing Pack of 4PCS (LM8UU(8x15x24))

I am working on a Rook build (3D printer) and needed some of these bearing for the Z axis. I first order a set from AliExpress and they were awful! So I decided to buy these instead, and they are great! The four I got are all extremely consistent and smooth running. I did have some binding when I put them into the plate, but I figured out it was because the seams inside the holes were causing misalignment. Once I fixed that they have worked great! I don't think I'll ever buy any other linear bearings!

I want to like these bearings, but they are ROUGH... not smooth at all. They were cheap though.

Fixed the y-axis rattle problem on my Prusa MK3S that developed after about 800 hours of printing. These seem to be of higher quality than ones that came with it, I've always had a little rattle and the seals never really sealed well on the shafts. These are much better in both regards. Hopefully they last a long time.

Bought these to slot into the slider upgrade for this throttle. Fit the rails and and slider perfectly.

Recently, I purchased a linear rail system, including linear bearings in a housing, already assembled. I should say they were linear cube bearings.Once these came in the mail, I was eager to try them out. First, they're impressively packaged individually. Also, one can see the were properly lubricated. After installation, I was waiting for the grinding sound these bearings usually make. Very little to register. They run smooth (which can be achieved by over sizing) but these are tight.So, I am so happy that I ordered more to replace others on my printers.Most outstanding, is the cost versus quality.

They are of good quality and definitely worth the money. Clean them of the preservative oil and then make sure you pack them with fresh lithium grease before first use. Bought to replace a noisy bearing on my MK3s and glad I bought these then just the regular junk fare available through many sites. These are of better quality and worth the price which is honestly not that much.

I found a 3D model I printed from Thingiverse that holds these bearings and makes the throttle move a lot smoother and able to do fine adjustments much easier than just a greased plastic piece gliding on the rods.

one perfect bearing, two rough bearings and one frozen bearing

These are a massive upgrade on the cheap bearings that had previously plagued my printer, I had really bad z banding and this sorted the problem right out. I shall likely have some more od these as funds allow.

Für den Preis sind die Kugellager echt top. Haben bei meinem MK3S+ die alten Lager ersetzt. Passen. Leise. Gut verpackt. Von 12 Stück alle gut.

Compre estos rodamientos para modificar el cuadrante acelerador de mi HOTAS ThrustMaster T.16000M, el resultado excede mis expectativas!

Good bearings, better than stock MK3S.

Pour le moment rien à dire je les ai acheté pour remplacer un roulement HS sur mon imprimante Prusa mini, à voir leur durée de vie dans le temps.