⚙ Ball Bearing

This 3D printable ball bearing is designed as a functional mechanical component suitable for prototypes, hobby projects, and educational demonstrations.

The model features a classic ball bearing structure with an inner ring, outer ring, balls separator and rolling balls, optimized for 3D printing and smooth rotation after assembly. It is printed as separte parts, which you need assemble.

Clearances are designed to balance printability and performance, making the bearing suitable for low-load applications such as spinners, sliders, small mechanisms, and rotating displays.

For improved performance and smoother rotation, it is recommended to lightly lubricate the balls and contact surfaces after printing and assembly (e.g. with silicone grease or light machine oil).

📐 DIMENSIONS:

• Outer diameter: 62 mm

• Inner diameter: 34 mm

• Width: 24 mm

• Ball diameter: 15 mm

• Number of balls: 8

🧩 FEATURES:

• ⚙ Functional ball bearing design

• 🧱 Inner & outer ring construction

• 🔄 Smooth rotation after assembly

• 🖨 Optimized for 3D printing

• 🧪 Ideal for prototypes and demonstrations

📦 INCLUDED FILES

• Outer ring

• Inner ring

• Ball (print 8× balls)

• Ball separator / cage

Optional aesthetic variants:

• Outer ring with chamfer

• Inner ring with chamfer

If you print this model, feel free to share your Make — it really helps support my work and lets others see how it looks in real life! ❤

Ball Bearing - Fully Functional Assembly

0.2mm layer, 3-4 walls, infill-check print settings

0.2mm layer, 2 walls, 15% infill