Smooth Bearing 608 (22x8x7mm) print-in-place

This is a print-in-place 608 bearing with 8x 5mm ball-rollers separated with distancers. I made it using ±0.1mm tolerances, as all the other models that I found either were too wobbly due to higher tolerances, or were difficult and unreliable to print.

When printed in PLA with 0.25mm nozzle it is quite enough for a spool holder or some other light-duty appliance. I successfully print them at 0.12mm layer height, 0.25mm nozzle and Input Shaper.

If you have a quality filament and a good, well-tuned printer, it will probably even work with 0.4mm nozzle.

Dimensions

• Outer diameter: 22mm
• Inner diameter: 8mm
• Height: 7mm
• Tolerance between the rollers and the rings: ±0.1mm

Print Settings 

0.12mm STRUCTURAL @MK4IS 0.25 PrusaSlicer Profile with:

• 50% Rectilinear Fill
• 0.1mm Elephant Foot Compensation
• No supports required.

Post-printing

After printing use an X-acto knife or a needle to separate the rollers from the distancers and lubricate with a few drops of silicone oil.

How it works

Video here.