Heavy Duty Bearing

thingiverse

Hi, this is my first shot at building a bearing. I scoured online for designs, but nothing met my expectations for overall strength. To boost the design, I beefed up the wall thickness of the rings and added a cage that holds 10 six-millimeter softair BBs securely in place. The inner ring consists of two pieces that snap together neatly. Measuring fifteen millimeters on the inside diameter and forty millimeters on the outside, this bearing boasts considerable size. Please keep in mind that this design relies heavily on rather large tolerances, so it may not perform well with extremely precise or well-calibrated 3D printers. If the fits are too tight or too loose, try tweaking the extrusion multiplier and sanding away excess material. Assembly instructions: Lubricate the cage with grease and insert it into the outer ring first. The individual balls will stay put due to the grease, so no extra effort is required there. Next, place the two inner rings in the center and press them together firmly. If necessary, use glue or acetone to bond the pieces securely. Edit: I've scaled up the parts since they were only one-tenth of their original size initially.