Conical Roller Bearing

thingiverse

This is a fully parametric conical roller bearing. Inspired by [this design](https://www.thingiverse.com/thing:2375124). My design takes a more efficient approach, using less material while improving the geometry to accommodate a wider range of possible sizes. The rollers' height and angle adjust according to their number and size. The housing is fully equation-driven (height, width, race angles, clearance), requiring no direct adjustments. I advise against tampering with anything that involves trigonometric functions. When properly glued (I simply use superglue), they can handle a surprising amount of force in both radial and axial directions. The "glue channels" are designed to allow you to assemble the bearing first, ensuring it works as desired, then apply a tiny amount of glue into the channels. This prevents contact between the glue and rollers. If you plan to integrate this design into your custom applications, the inner race is a single piece, easily incorporated into any project. The outer race consists of two pieces and needs to remain separate for assembly. I recommend gluing the outer race, but integrating one half into your design is also possible. Make sure you can still install the rollers when needed. The attached .stls include a small bearing (rollN = 12, rollD = 3mm, rollC = 0.1mm), a standard one (rollN = 22, rollD = 5mm, rollC = 0.1mm), and a large one (rollN = 32, rollD = 8mm, rollC = 0.1mm). The 608 & 6203 bearings are about 26% narrower than standard sizes. I've tested the 6203 (the cover photo) and also created a 608 (the one being assembled), which uses 3.4mm rollers. Lubed and glued, the 6203 performs exceptionally well, but the 608 remains somewhat "crunchy". I'm pleasantly surprised by how well the 6203 turned out, but I believe you'll achieve better results by finding a bearing diameter your printer can produce reliably, then using these dimensions as a reference. I've been using PLA (with white petroleum jelly for grease) because that's what I have available. It would be interesting to see how these bearings perform with more advanced filaments such as nylon or PEEK. Feel free to add this design to your Fusion toolbox and enjoy. I'm looking forward to seeing the creative projects people will make using these conical roller bearings and how far they can be taken.