Sonny’s 25hp central vac motor

[Jason@Eco]

How long do the bearing’s last on a 25hp central vacuum motor? They are only a couple years old and I’m hearing a growling noise from one of them. I’m hoping someone can tell me if that’s a bearing or something more serious?

 

[Keno]

Are they greaseable bearings? If so, are they maintained with the proper amount of grease? More isn't always better. If sealed bearings and running constantly for a couple years, could see them start to make noise. Either way getting bearings changed before a failure is way cheaper than buying a new 25hp motor

 

[NewEnglandTech79]

It could be the bearings on their way out. Or the noise you're hearing could be one of the turbine blades has broken away from the turbine shaft internally.