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Fully printable 608 roll bearing

by noreway, published

Fully printable 608 roll bearing by noreway Mar 1, 2013

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Summary

The heringbone gear bearings are hard to print in good quality and small sizes. Ball bearings are not fully printable because the balls will never be round. So i tried a roll bearing.

Print 8 bearings and a skateboard: http://www.thingiverse.com/thing:83738

Instructions

Assembly

  1. Print
    I used a Printbot Plus with 0.35mm Nozzle and 0.2mm layer height.
  2. Glue inner race
    Maybe file or sand the inner hole before.
  3. Assemble
    Assemble every second roll inverted.
  4. Glue outer race
    Turn bearing around to ensure rolls are not glued to outer race.

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its working. wau

could u make a seperate inner cylinder file? 2 of mine got messed up. tthanks

How much force can this take along the axis of rotation? Could it hold up a kilogram filament spool?

This version has the little terrace on the inner race. Therefore axial forces gives a lot of abrasion. The second version (http://www.thingiverse.com/thing:86629)http://www.thingiverse.com/thi... has inner facets and takes more force in axial direction over the rolls. I uses 8 of them for my mini skateboard (http://www.thingiverse.com/thing:83738)http://www.thingiverse.com/thi... that hold 65kg in very careful usage.

For axial forces you maybe should also check the gear bearings (for 32mm inner hole spool: http://www.thingiverse.com/thing:55860)http://www.thingiverse.com/thi... by emmett.

Fully printable 608 roll bearing v2
by noreway
Mini skateboard
by noreway
Gear Bearing 32x10x6.7mm (6 planets)
by noreway

The edge seems really thin. Is there a reason for that, or is it just that way.

Have a look at the second version with stronger edges.

Hi Barz3

It's because I wanted to print the rolls as big as possible. If the bearings are pressed in a skateboard wheel, the edges are strong enought.

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