Bearing Generator - Parametric Ball Bearings

Looking for Bearings? Look no further.

This OpenSCAD script lets you generate fully parametric ball bearings, supporting over 60 standard sizes, including R-series, 6000-series, and 6200-series, with the flexibility to create custom dimensions.

Need a 608 bearing for skateboards, an R10 for machinery, or a 6205 for industrial applications? Or do you have specific design requirements? This script allows precise customization of inner and outer diameters, width, flanges, rolling elements, and 3D printing optimizations.

Click on Customize to open the generator.

🚀 Quick Start

- Select a Bearing Type Choose a standard bearing size or define a custom one. Adjust parameters like inner diameter, outer diameter, width, and optional flanges.

- Choose Rolling Element Select from three rolling element types (ball, roller, dumbbell). See the Rolling Elements section below for more information.

- Render and Export Generate the bearing at the desired resolution and export it for slicing and printing. A fine layer height improves detail and fit.

⭐ Features

- Supports 60+ Market Sizes Includes R-series (R2–R24), 6000-series, 6200-series, 6300-series, and more.

- Customizable Geometry Adjust diameters, widths, rolling elements, flanges, chamfers, and clearances.

- Multiple Rolling Elements Choose between balls or FDM-optimized rollers and dumbbells for the best printability.

- Precision Modeling Produces clean geometry and accurate measurements.

- 3D Printing Ready Fine-tune clearance, spacing and resolution for perfect 3D-printed bearings.

🛠️ Changelog v1.1 - Added support for 17 more bearing types (F686ZZ-F6006ZZ).

v1.2 (latest) - Added support for 5 more bearing types (605 & 16000-series).

🔄 Rolling Elements Different rolling elements print and perform differently. Here's how they compare:

Dumbbell shape with reduced contact points. Rolls smoothly, self-centering, and resistant to jamming. Well-suited for various configurations and print-friendly.

Cylindrical rolling elements with full-line contact. High load distribution, smooth motion, and easy to print. Can have slight lateral drift if not well constrained.

Traditional ball bearings with minimal contact area. Low friction but requires smooth geometry. Small versions may have tiny discrepancies when printing.

I’ve tested multiple bearings across different types and sizes, and it’s hard to declare a single best option. On average, the dumbbell shape performed best across various configurations, which is why it’s the default in the customizer. That said:

- Ball bearings can be tricky to print in smaller sizes due to potential sticking or sloppiness. However, they roll very smoothly and are ideal when minimal friction is key.

- Roller bearings are easy to print and provide continuous contact for smooth motion, making them a solid choice for many applications.

These are my initial observations, but I’d love to hear your thoughts!

📜 Maker Scripts