Bearings. Prusa better than Misumi. Lubrication
 
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Bearings. Prusa better than Misumi. Lubrication  

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Ckobar
(@ckobar)
Trusted Member
Bearings. Prusa better than Misumi. Lubrication

Hi, i know it has been discussed before, but.....

I want to replace my bearings because the X axis sometimes squeaks an Y is way louder than in the beginning. ( 1 year, factory assembled, lot of print time 🙂

 

so i ordered new rods (g6) and bearings from prusa. I than read, that Musimi is better and ordered some too.  I degreased them properly and packed the misumi ones with superlube.  Quite a disappointment when i tried the misumi bearings. They felt really rough. So i tried the (not yet packed) prusa-bearings.

What a difference. Super smooth.  So i packed them too and found they felt much "rougher" than before.

So i degreased one misumi. Better, but still rough, especially when applying the load a little offcenter.

I degreased both again and tried with the original prusa grease, same results.  I than lubricated one bearing of each with PTFE Bicycle chain lube.

The prusa bearing was as good as without any lube, the misumi rough as ever.

 

So 1  thought. Does prusa have better bearings now. ( i don't think the misumis i ordered are fake)

and 2nd. Is grease really the best option

 

Prusa

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Posted : 24/03/2024 12:13 pm
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