SC8UU replacement for IGUS Drylin RJ4JP-01-08 (LM8UU)

thingiverse

I wanted to upgrade my LM8UU to IGUS Drylin by swapping the existing LM8UU in the aluminium SC8UU with an IGUS Drylin RJ4JP-01-08 bearing. The result was a lot of bearing clearance, so I had to find another solution. According to the datasheet, the IGUS drylin bearings need to be installed in a precisely machined hole with a certain preload. I searched for printable SC8UU replacements that would provide good preloading and clamping, but couldn't find any designs that applied force on all circumference of the bearing. I didn't want to just clamp the IGUS drylins in one direction. To solve this problem, I designed a new part that can be used with the IGUS Drylin bearings. It's already been installed on my Anet A8's X-Axis and there is no play in the X-axis anymore. The design allows for adjustable mounting screws, so you can fine-tune the installation as needed. I plan to install four of these parts on the Y-Axis, using M4x25 screws, nuts, and IGUS Drylin RJ4JP-01-08 bearings each. This design can also be combined with printed bearings, which are available on Thingiverse (https://www.thingiverse.com/make:427051). I designed this part using Onshape, and the source file is available here (https://cad.onshape.com/document-redirect.html?d=/documents/265813617707d1c56544b1b5/w/78a7bb831d00a2f2c1d3a28e). The original inner diameter of this part is 15.1 mm, but I've also included two additional STL files with inner diameters of 15.5 and 16.0 mm, which you can use depending on your printer's tolerances.