ᐅ Ball bearing set of ten for Comfoair 350 / ebmpapst R3G220-AD01-07
Created on: 22 Apr 2026 19:35
M
MayrChHello everyone,
After nearly 90,000 operating hours, the bearings of the fans in my Zehnder Comfoair 350 (without Q) are starting to become audible. Last night, I already removed the fans to access the nameplate of the radial fans, but today I found that the bearing type is not specified in the fans’ data sheets (although it does state that the bearings have a service life of 40,000 hours). Ebmpapst doesn’t provide any information on this, only referring to their sales partners who, unsurprisingly, want to replace the entire fan.
On the internet (in a related forum), there is a bearing type mentioned (626 2z), but I know from Ebmpapst that bearings are often changed within and between different product lines.
Has anyone here already replaced the fan bearings and can confirm the bearing type?
After nearly 90,000 operating hours, the bearings of the fans in my Zehnder Comfoair 350 (without Q) are starting to become audible. Last night, I already removed the fans to access the nameplate of the radial fans, but today I found that the bearing type is not specified in the fans’ data sheets (although it does state that the bearings have a service life of 40,000 hours). Ebmpapst doesn’t provide any information on this, only referring to their sales partners who, unsurprisingly, want to replace the entire fan.
On the internet (in a related forum), there is a bearing type mentioned (626 2z), but I know from Ebmpapst that bearings are often changed within and between different product lines.
Has anyone here already replaced the fan bearings and can confirm the bearing type?
J
Jesse Custer22 Apr 2026 22:11I would first remove the old parts – as you said, ebm papst is very creative when it comes to integrating different components that fit together…
Otherwise, 626 Z or 2Z should work.
Otherwise, 626 Z or 2Z should work.
