608 gear bearing

thingiverse

3D printed, full-spec 608 planetary gear bearings are perfect for prototyping and light load jobs before using real 608 bearings. They're also good to go for skateboarding. You can see them in action here: https://youtu.be/X48_UYtfMCs Here are the specs: * 19-teeth sun * 31-teeth annulus or ring gear * 10 six-teeth planets * 0.15 tolerance As per standard 608 specs, these bearings have: * 22 mm diameter * 7 mm thickness * 8 mm bore You get three different types of 608 bearings: * Round outer race and inner bore (typical 608) * Square outer race (22 mm) and inner (6 mm) bore * Hex outer race (22 mm) and inner (8 mm) bore And here are the square and hex break-in tools: * Outer race holder * Inner bore key with a triangular shaft for a drill's three-jaw chuck and a hole for a pencil or screwdriver to give you extra leverage. Credit goes to Gear God emmett, I used his customizer to spec it to 608. His branding had to go though, as it had some holes. Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=53451