Free No account needed

Print-in-Place Ball Bearing Generator (OwlCAD)

A ball bearing that prints already assembled, picked by trade size from 2 mm to 60 mm bore

Print-in-Place Ball Bearing Generator (OwlCAD) is a free browser tool for printing a working bearing in a standard size without buying one. The customizers and the editor are free; only OwlCAD's AI features need the Pro subscription. Exports STL and 3MF; no account needed. Last checked 16 October 2026.

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At a glance

Price: The customizers and the editor are free; only OwlCAD's AI features need the Pro subscription
Runs on: Browser
Exports: STL, 3MF
Multicolor: No, single color
Account: Not needed
Open source: No
Skill level: Easy: a few settings to tune
Best for: Printing a working bearing in a standard size without buying one
Selling prints: Allowed OwlCAD's terms include commercial use on every plan, the free tier included: you may sell prints, sell or license the files and use them in a product, with no royalty and no attribution required.
How we checked: Opened the generator Customizer opened in a browser with no account: the default 608 bearing (8 mm bore, 22 mm outside, 7 mm wide) rendered in 3D with all settings; pricing and terms read
Checked by: Mike Janssen
Last checked: 16 October 2026

Open generator

Sources: Ball bearing customizer, OwlCAD pricing, OwlCAD terms (checked 16 October 2026)

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About this generator

The Ball Bearing Generator is one of the free customizers in OwlCAD, a browser-based parametric CAD tool. It makes a deep-groove bearing that prints in one go: two races with the rolling elements captured between them, so it comes off the plate turning.

You pick a trade size such as 608, 629 or 6000 and the bore, outside diameter and width come from the published table, with over a hundred sizes from a 2 mm MF52ZZ to a 60 mm 6312. You can also type your own dimensions. The rolling elements can be balls, rollers or self-centering dumbbells, and you set the fit (tight, normal, loose or a custom clearance), the spacing, an edge chamfer and an optional flange.

It runs in the browser with no account and costs nothing; only OwlCAD's AI features are paid. It is one of 35 free OwlCAD customizers, and you can open the result in the full editor if you want to change more. Its terms give you full commercial rights to what you make, the free plan included.