608 sized gear bearing

thingiverse

This is an accurately sized 608 bearing, remixed from the ever-popular and ingenious planetary gear bearing by emmett. The bearing spins remarkably well, and is a suitable replacement for metal bearings for low-force and low-speed applications. After messing with this quite a lot, I have found a tolerance that work well for my print settings. I believe the tolerance setting that will work best will depend highly upon your own slicer settings and setup. I would recommend downloading OpenSCAD, and if you print this and find the planetary gears slip out of position, lower the tolerance setting in the SCAD file by .01 and print again until you find a good setting for you. If the gear is too tight and does not rotate freely, then raise the tolerance by .01. I recommend printing at very high quality and low speed settings for the best results. .15 or lower layer height, 30 or lower speed. I am printing mine at .1 mm layer height, speed of 10, .8 mm wall thickness, and 100% infill. This seems to yield a good result for my machine, using eSUN PLA+.