Printed MR63ZZ bearings

Forum about the OS-Railway project available on Thingiverse. Here you can ask questions, look at building pictures, share ideas, pictures and STL's.
sigterm
Posts: 6
Joined: Mon Aug 13, 2018 3:06 pm

Printed MR63ZZ bearings

Postby sigterm » Tue Dec 18, 2018 7:41 pm

Hello depronized,

I would like to ask you for recommendation of STL model to be printed as substitution for real MR 63 ZZ bearings. I have them ordered but they wont get to me soon enough so I will be forced to print them. I have not found enough promising model yet, and I have noticed that you mentioned dummy PLA bearings on this page. http://depronized.com/2018/02/13/presen ... in-system/
Would you mind sharing the model for PLA dummy bearings please?

Thank you.

admin
Site Admin
Posts: 409
Joined: Thu Jan 11, 2018 7:46 pm

Re: Printed MR63ZZ bearings

Postby admin » Wed Dec 19, 2018 5:10 pm

Hi,

I just made the mosts simple bushing/bearing dummy, just a cylinder that I printed in PLA.
I have included a set in an STL for my RC6 locomotive on Thingiverse: https://www.thingiverse.com/thing:2274141/files

Best Regards
/Olle

dlotts
Posts: 1
Joined: Wed Dec 09, 2020 7:17 pm

Re: Printed MR63ZZ bearings

Postby dlotts » Wed Dec 09, 2020 7:46 pm

I used a m3 nut as a bearing.
I found some regular metal hex nuts (as in bolts and nuts) that fit nicely. It's probably a M3 but might be a non-metric as I sourced it from a huge bag of hardware I have. They might even be a good permanent alternative. As you know, a bearing does not have to be a rolling/ball bearing. Some bearings are just a smooth hardened surface with lot's of lubrication.

Interesting, I just looked into it. This use of a nut would be considered a "bushing". It would be part of a "plain bearing". The shaft moving in the bushing is a "journal". These were actually used on trains before roller bearings. https://en.wikipedia.org/wiki/Plain_bearing

david.


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