Bearing block for 8mm (or 5/16") shafts/round rails

thingiverse

NEWS: Uploaded new version of the bearing with an improved design. Bearing-01-4mm.stl I tightened up the grip on the rod and am using a single 2x6x3 mm bearing closest to the mounting face, preventing it from protruding higher than standard bearing blocks used on most printers. These retain the same M3 screws as before, but substitute one M2x8 mm screw for the smaller bearing. My Prusa is now operating smoothly, quietly and completely slop-free using these bearings. A 4mm shaft bearing block that yields super smooth motion, minimal friction, and no slop. These bearings deliver exceptionally light moving parts with precision accuracy. You can directly replace three LM8UU bearing blocks with just three of these new ones, although they add an extra 4mm in height compared to the standard aluminum bearing blocks – this typically isn't a problem. Remember to mirror your slicer settings to orient the bearing correctly if needed. I often pair two opposing bearings on one shaft for optimal aesthetics. Print Settings Rafts: You can print them however you like, as they really don't matter that much. Supports: Infill: Keep infill at 30% or more to achieve maximum precision. Notes: These are easy prints – almost foolproof!