608 Bearing (Roller Bearing)

Attention!!!

The print profiles have been tested in Bambu Studio. With other slicers, a different calculation in gap filling might lead to the rollers fusing with the central sleeve, which naturally prevents functionality

Hello makers,

here is my attempt to make a 608 ball bearing printable

Now I want to share the result with you

The 608 is designed as a roller bearing. Instead of balls, it has rollers inside for low rolling resistance. The bearing rotates very smoothly, is robust, and ideally suited for "lighter" tasks. ;-) For heavier tasks, I have a plain bearing in my assortment. You can find it here

In this project, there are two print plates. The first plate is suitable for AMS and performs a color change on different layers. It looks cool and not everyone has it. The second plate is designed for a single-color print. For all those who only care about the bearing's functionality

I recommend PETG for printing. All other filaments (except TPU and similar) should also work without issues. After printing, the bearing might stick a bit. Here, you should simply help it along with your fingers and push the inner race back and forth. The rollers usually free themselves during operation. ;-) It helps if your printer is well-tuned and your filament is sufficiently calibrated. To check this, I also have a tolerance meter for printing

Feel free to post pictures in the comments

Happy printing

Notes on the print profiles:

General:

• use a smooth print plate
• when printing with PETG (ABS), pay attention to bed adhesion (spray adhesive)
• the quality of the first layer is important
• print slowly
• keep your nozzle clean and optimize your printer and filament settings

Profile 1:

• the bearing has a clearance of 0.2mm between the rollers
• in my tests, I found the fewest printing problems with this
• I recommend PETG for the best performance
• it might be necessary to break some rollers free after printing

Profile 2:

• the bearing has a clearance of 0.25mm between the rollers
• the bearing has the smoothest operation of all versions, but is also accordingly rattly ;-)
• I recommend PETG for the best performance

Profile 3:

• the bearing has a clearance of 0.15mm between the rollers, making it the most stable
• in my tests, I could only print a functional bearing with PLA
• if your printer cannot manage it, I recommend using a 0.2mm nozzle
• after printing, the rollers and inner race must be broken free

Profile 4&5:

• these are the old profiles with 11 instead of 9 rollers
• the bearings also work and therefore were not deleted
• the decision is yours