Skip to content

Parametric Bearing

Download free SCAD file Parametric Bearing • 3D print model, kevfquinnDownload free SCAD file Parametric Bearing • 3D print model, kevfquinn

Did you 3D print this model?

3D model description

This a parametric bearing. I wrote it as a little challenge to myself, to see if it could be done in a tweet :) The OpenSCAD source file here is the full expanded source, because the tweet version is a little harder to read ;) They both do exactly the same thing, however.

Find it on Twitter here: https://twitter.com/kevfquinn/status/998301858010685441

There are a couple of example STLs - the numbers in their filenames are the values of the various parameters used to create them. Note the last number is the resolution of the STL - this can be read as a layer height; printing at a lower layer height will not yield a more accurate model.

Parameters are:
1. Bearing radius to ball center
2. Bearing wall minimum thickness
3. Bevel radius
4. Bearing height (channel radius)
5. Clearance between bearing and balls
6. Resolution of inner channel and bearing balls (~layer height)

Key parameters are the bearing radius and the height. The radius is from the centre of the bearing to the centre of the balls. The height determines also the size of the balls; the ball diameter is the height less the clearance amount.

Clearance may well need adjusting in line with the accuracy of your printer. For me, 0.2mm either side of the ball (so 0.4 setting for the clearance parameter) is enough that the balls are almost free - having them not quite fully free after printing helps with removal of the support material under the balls, then they're easily freed with a little encouragement.

  • 3D file format: SCAD and STL

Tags

Creator

Designs 12
Downloads 455
Followers

Hobbyist designer in the UK.

License

CC BY SA


Best sellers of the category Tool


Add a comment


Would you like to support Cults?

You like Cults and you want to help us continue the adventure independently? Please note that we are a small team of 3 people, therefore it is very simple to support us to maintain the activity and create future developments. Here are 4 solutions accessible to all:

  • ADVERTISING: Disable your AdBlock banner blocker and click on our banner ads.

  • AFFILIATION: Make your purchases online by clicking on our affiliate links here Amazon, Gearbest or Aliexpress.

  • DONATE: If you want, you can make a donation via PayPal here.

  • WORD OF MOUTH: Invite your friends to come, discover the platform and the magnificent 3D files shared by the community!