Anyone with experience with magnetic bearing fans?

[crazyjr]

I found this fan on Amazon, 30 x30 x 15 MM fan wondering if anyone had experience with it. Specifically how it handles rough driving and impacts.

https://www.amazon.com/SUNON-Brushl...3-4342-9c5c-4ab254206383&ref_=pd_gw_ci_mcx_mi

The concern i have is that it's a mag-lev type (magnetic levitation bearing) and wondering how it'd handle an RC environment. all other specs seem good, 5 volt,/0.04 amp/0.4w all seem within the ability of the Onboard BEC (no external battery or a T off from the main battery) just need to wire up a servo plug. The reason i'm considering it is #1 it's claimed near silent (around 20db) and it can move a lot of air (4.8 CFM). this will be going on a Arrma Big Rock BLX 100 with an adapter 3d printed by a friend with a file found on these forums.

Once again thank you for any info you might can spare. Even if nobody knows, not against trying it myself

 

[Tex Koder]

For on-road speed runs, I'd think it'll do alright, maybe.
But, for off-road bashing... it'll probably loose it's ghost fairly quick.

 

[crazyjr]

For on-road speed runs, I'd think it'll do alright, maybe.
But, for off-road bashing... it'll probably loose it's ghost fairly quick.

I did stumble on another setup same dimensions with either a ball or sealed bearing, also moves more air as well, might be better then, thanks. till now never knew the Mag-lev type existed, so was curious of if they would work

 

[Diem Turner]

The first thing that seemed odd was the incredibly low power draw of 0.4W and the item's specs confirm that this would be a rather poor choice for RC vehicles. Irrespective of its durability, with an airflow of 4.8CFM @7000rpm this thing provides little more than a breeze and will do little to nothing to cool a hot motor or ESC.

 

[slick2500]

The first thing that seemed odd was the incredibly low power draw of 0.4W and the item's specs confirm that this would be a rather poor choice for RC vehicles. Irrespective of its durability, with an airflow of 4.8CFM @7000rpm this thing provides little more than a breeze and will do little to nothing to cool a hot motor or ESC.

Right? 4.8cfm @7000rpm is not a lot of air at all. The Rocket 30mm fans spin at 28,000rpms for reference.

 

[Diem Turner]

Right? 4.8cfm @7000rpm is not a lot of air at all. The Rocket 30mm fans spin at 28,000rpms for reference.

Yeah. My NMB server fans spin at 26,500rpm and move 36CFM. Each.

 

[slick2500]

Yeah. My NMB server fans spin at 26,500rpm and move 36CFM. Each.

I couldn't seem to find a spec listed for the cfm of the Rocket fans even the Surpass website only shows the rpms. But I am fairly certain it is more than 4.8.

 

[Diem Turner]

I couldn't seem to find a spec listed for the cfm of the Rocket fans even the Surpass website only shows the rpms. But I am fairly certain it is more than 4.8.

At 28,000rpm, it would have to be a bladeless fan not to