[CPAP] Whining siren noise and bearing replacement/repair

[trish6hundred]

Hi clintga,
WELCOME! to the forum.!
Great job on getting your machine fixed and thanks for the information.
Much success to you with your CPAP therapy.

[truetopath]

That's awesome that you got your machine all fixed up. It's good to know about the bearings if mine ever dies.

[OMyMyOHellYes]

You know, I may try that tactic with my S-9 with the growly bearings.

OMMOHY

[Mark Douglas]

bearings generally start dragging before noise is audible causing stress elsewhere - increased current draw and erratic back EMF. Is why I asked about hours. I may want to just change the bearings as a wear item.

[AlanE]

They are shielded bearings. I will try to attach a pic. Google plus made the pic not very clear. The right bearing had a small amount of rust. The left bearing could have been used longer. But as a precaution, I changed out both.

Those bearing look very similar to the brush roller bearings I just replaced in my Dyson.

[Mark Douglas]

They are shielded bearings. I will try to attach a pic. Google plus made the pic not very clear. The right bearing had a small amount of rust. The left bearing could have been used longer. But as a precaution, I changed out both.

Those bearing look very similar to the brush roller bearings I just replaced in my Dyson.

bearings are bearings and the descriptor standardized. is no problem to acquire. example expensive wheel bearing in Jag XKE is same as cheap bearing in Chevy. Do not ask how I learned this as a youth.

[OMyMyOHellYes]

bearings are bearings and the descriptor standardized. is no problem to acquire. example expensive wheel bearing in Jag XKE is same as cheap bearing in Chevy. Do not ask how I learned this as a youth.

Pnless they have a PMA number associated with them (aircraft). Then they get more expensive. Just because.

[justMongo]

...example expensive wheel bearing in Jag XKE is same as cheap bearing in Chevy. Do not ask how I learned this as a youth.

So, you used the expensive Jag bearing in your Chevy.

[Mark Douglas]

...example expensive wheel bearing in Jag XKE is same as cheap bearing in Chevy. Do not ask how I learned this as a youth.

So, you used the expensive Jag bearing in your Chevy.

I commend your dry sense of humor! LOL

[clintga]

bearings generally start dragging before noise is audible causing stress elsewhere - increased current draw and erratic back EMF. Is why I asked about hours. I may want to just change the bearings as a wear item.

Probably in the neighborhood of 18,000 hours...as an estimate. I don't think my machine will tell me the exact hours.