Befenybay 6PCS Diameter 8mm Black TR8x2 Lead Screw Nut for CNC and 3D Printer Parts (Size: Tr8x2)

My ender 5 plus was driving me insane till I used these. Its so much better now, no more squeaks!

These TR8x4 Lead Screw Nut are good quality, but these are not for Prusa mini, the size is diferent.

These make a good update to help eliminate the need for lubricant and eliminate noise. They are a little sloppy - a lot like the brass ones. I think a little higher precision would be ok.

Super quiet, barely any play compared to brass nuts. These fit my 3d printer perfectly. Z movement is not loud at all. I hear the motors themselves way more clearly over the lewdscrew nut.

Got these for my new ender 5 plus. Fit great and took away the screech it had developed when lowering z axis.

Worked!

I decided not to wait for the brass ones to wear out. sure they are self-lubricating, as they wear out, but their wear provokes the increasing possibility of backlash on a gravity-engaged moving part. These POM pieces are the worlds slipperiest plastic with the best wear rate. They are a tight fit, compared to even new brass lead screw nuts, but that tightness is not binding. reassuring is the word I would use. From what I have read, the wear properties are much superior to the brass. I retain the brass as they have not been used to the point of being worn out. The Z gantry of my 3D printer feels more substantially connected and any crew-induced motion artifacts no longer exist. Just smooth layer lines, buttery smooth and consistent. This will be a first order upgrade for any and all of my new FDM printers from now on.

Good item

The threads on this fit the Prusa MINI+ and my first few prints have been successful. Although the threads fit, the fastener holes and diameter are not the same size as the MINI+s original nut. I had to modify the holes on this screw nut in order to fit the MINI+ (I cut it to make two of the holes into slots). So far it works!

TR8X4 works for Anycubic Mega-X. Hole pattern is good but not threaded. Need to use longer bolts and nuts.