The attached model features an inner diameter of ⌀26 mm and an outer diameter of ⌀40 mm. Its total thickness is 8 mm, with chamfers of 1.5 mm applied to both the inner and outer diameters.
You can generate a new model with your own dimensions on iteration3d platform:
https://www.iteration3d.fr/en/templates/template-view.php?templateid=19
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The author marked this model as their own original creation.