Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  

Brass bearing squeaking

Recommended Posts


I've read a few posts about lubrication and the consensus seems to be to not lubricate the rods (except for the threaded rod with the green grease) at all. However some of my smooth rods (x/y axis) do squeack noticeably. Some of them are not entierly clean, they have dark areas along them. It is not dust or the like because I can't wipe it off.

Anybody else had this problem? I bought some universal oil - just in case but haven't used it:





Share this post

Link to post
Share on other sites

It is the smaller axis rods that you want to avoid lubricating because they have self-lubricating bearings sliding across them. It does more harm that good to add lubricant to those.

As for the larger axis rods, they only have solid brass sliding across them as you know.

Lubricant wise, what do you guys think about using ordinary gun oil? I know Europe and the other side of the US are pretty anti-gun so I don't expect many of you to have it. Are the properties similar to that of sewing machine oil?


Share this post

Link to post
Share on other sites

The smaller rods are not self lubricating. They are linear ball bushings. Or rather, ball bearings rolling on the shafts. Lubricating them does no harm. I would recommend it from time to time. I have used both the green grease provided by UM and sewing machine oil on them.

The sintered bronze bushings used for the X-Y belt blocks are oil impregnated from the manufacturer. This does not mean they are what engineers would call "Lubed for Life". They need to be oiled. I would recommend every 5 hours of operation or so. The only harm to over oiling is you might drip into the print envelope or get oil on your belts.



Share this post

Link to post
Share on other sites

Both the axes and the cross rods can, and in my opinion should, be lubricated with light oil. I definitely wouldn't use the grease - it's too thick, and attracts dust, and generally does more harm than good.

Don't know anything about gun oil, I'm afraid.


Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  


  • Our picks

    • Architect Design Contest | Vehicles.
      We're open for entries! - Design and submit your 3D designs of architectural entourage - vehicles - for a chance to win a large filament pack. Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled model can really help to get your idea across.
        • Like
      • 24 replies
    • What The DfAM?
      I'm Steve Cox, an experienced engineer familiar with 3D printing. I wanted to share some DfAM guidelines with this community to help and make stronger parts.
      I'm also an Autodesk Certified Instructor for Fusion 360, so many of the images in ...
        • Thanks
        • Like
      • 23 replies

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!