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Another Ball Bearing

by blecheimer, published

Another Ball Bearing by blecheimer Mar 2, 2013

Description

Yes, it is another ball bearing. I was a little bit bored and this is the result...
The ball bearing uses 6mm softair ammo and is designed to snap together. No glue necessary. It has an inner diameter of 10mm and 28 on the outside.
The print will take 15...20 min.

I made a video to show the assembly:
youtu.be/uXTspufYuXM

EDIT:
I uploaded two new inner parts with an diameter of 8mm.

Recent Comments

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Thanks a lot! It's perfect for a M8 threaded rod.

Sure, no problem. I uploaded the two new inner parts with a diameter of 8mm.

Feature Request:
Could you upload a inner1-version with a inner diameter of 8mm?

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Instructions

- Print the parts (rotate inner2.stl by 180°) - I recommend a layer height of 0.1mm
- load the balls
- snap-on the inner part
- keep on rolling

Comments

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flurin on Mar 5, 2013 said:

Feature Request:
Could you upload a inner1-version with a inner diameter of 8mm?

blecheimer on Mar 5, 2013 said:

Sure, no problem. I uploaded the two new inner parts with a diameter of 8mm.

flurin on Mar 3, 2013 said:

Thanks! Your Ball Bearing is the best I printed, so far.

blecheimer on Mar 3, 2013 said:

Thanks for your comment!

alejamp on Mar 3, 2013 said:

Did you try acetone to polish disc inside faces? What do you think about?

blecheimer on Mar 3, 2013 said:

Unfortunately acetone does not work with PLA.
But is polishing really necessary? The ball are rolling in the direction of the layers.

alejamp on Mar 3, 2013 said:

Awesome! Nice design.

blecheimer on Mar 3, 2013 said:

Thanks!

Walt on Mar 2, 2013 said:

I flipped the STL for the small ring so that it prints oriented as shown in the photo, and it all snapped together and worked beautifully. The 0.25 gram BBs that I bought measured 5.93mm in diameter, and so there was a little more play, but it still rolled smoothly.

blecheimer on Mar 2, 2013 said:

Nice to see that your bearing works. I am always a little bit concerned about PLA shrinkage.

Walt on Mar 2, 2013 said:

I was looking up where to buy the BBs, and found that they come in various densities by weight. The 0.25 gram BBs are sold as Precision BBs, and so I assume they are more round than the lighter ones.

blecheimer on Mar 2, 2013 said:

That is really a good idea. I had to deburr all my BBs.

Walt on Mar 2, 2013 said:

No rust problems, and waterproof!

ahd71 on Mar 2, 2013 said:

Brilliant design!

blecheimer on Mar 2, 2013 said:

Thanks - but it is quite simple. ;-)

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