688 Ball Bearing (Assembled)

thingiverse

<h3><strong>Standard size 688 ball bearing.</strong></h3> <p>You will need to assemble this bearing, allowing for a small tolerance during printing. This makes it easy to print and avoids any cleaning or welding that might be required. If the bearing becomes damaged or worn out, it can be easily repaired.</p> <p>The balls at the top and bottom of the bearing are cut to prevent them from becoming egg-shaped while being printed.</p> <h4><strong>ASSEMBLY INSTRUCTION :</strong></h4> <p><strong>1-</strong> Lay the outer ring flat on a surface.</p> <p><strong>2-</strong> Place one center piece inside the outer ring.</p> <p><strong>3-</strong> Insert 15 balls between the inner and outer ring. You can use a drawing pin or needle to help get the balls in place.</p> <p><strong>4-</strong> Align the second center piece and push it down firmly. This should be difficult, but it ensures that the bearing won't come apart on its own.</p> <p><strong>5-</strong> Depending on your printer and slicer settings, the bearing might jam after assembly. Don't worry! Grip the inside of the bearing with pliers or a similar tool and turn it. The rolling will smooth out over time (you'll see a difference in just a dozen turns).</p> <p><em><strong>**</strong>Recommanded-</em> To extend the lifespan of your bearing, insert some plastic-safe lubricant, like silicon lubricant, which will help hold the balls in place while assembling.</p> <p><strong>Note,</strong> the outer ring and balls are compatible with my 625 Ball Bearing (<a href="https://www.thingiverse.com/thing:3420741">https://www.thingiverse.com/thing:3420741</a>)</p> <p><strong>UPDATE 1,</strong> 03/03/19 : I have added a smaller variant of the balls (0.1mm smaller) if you had trouble with smooth rolling (.stl files added: All-in-1_SMALL, Balls_SMALL, Single_Ball_SMALL)</p> <p>Check out my other designs at <a href="https://www.thingiverse.com/gabhunter123/designs">https://www.thingiverse.com/gabhunter123/designs</a></p>