Smooth vs. Toothed Idler Pulleys  

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Omikron
(@omikron)
Estimable Member

I've searched around for a good bit now, and I don't seem to have a clear answer on this...

What is the reason that smooth idler pulleys were chosen instead of toothed ones? Beyond cost, is there any potential disadvantage to toothed pulleys?

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Posted : 14/10/2016 1:02 am
JohnOCFII
(@johnocfii)
Estimable Member

I've searched around for a good bit now, and I don't seem to have a clear answer on this...

What is the reason that smooth idler pulleys were chosen instead of toothed ones? Beyond cost, is there any potential disadvantage to toothed pulleys?

It is the same on my other printer too. My first thought was that the designers didn't want two toothed gears fighting each other, but I guess that doesn't make sense since only one is powered.

https://3dprinting.community/login #Community Discussion for 3D Printing...
Posted : 14/10/2016 6:24 am
david.t2
(@david-t2)
Noble Member

Smooth idler is way easier to manufacture. 😉

Posted : 14/10/2016 8:58 am
Jexoteric
(@jexoteric)
Eminent Member

What size is the idler pulley on the mk2? The build instructions just say 623 bearing housing.

From what I've seen in previous discussions on this, toothed pulleys potentially give longer life of the belts and do not deform the teeth, but the general thought is that this may be important for an industrial machine that runs around the clock, most printers do not run those kinds of hours in their life, and so it is not a real concern.

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Posted : 24/10/2016 4:49 am
mtnmage
(@mtnmage)
Active Member

Has anyone found an answer to this? 

Posted : 19/06/2020 9:25 pm
Karl Herbert
(@karl-herbert)
Famed Member

After the bearings were defective i changed my smooth idler pulleys on both axes (X/Y) against this one:

https://www.amazon.de/gp/product/B07LF7CJ8D/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1

alternatively this one:

https://www.amazon.de/gp/product/B071J86YFX/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

depending on printer type.

This post was modified 1 month ago by Karl Herbert
Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen....
Posted : 20/06/2020 12:04 am
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