Navi747

Hi guys,
am new here so pls bear with me.
what bearings would you suggest for using in a mini jet.
what do you guys think of ceramic ball bearings & where can i get them.

nellsey

What motor?
Ceramic ball bearings in glow engines have a tendancy to shatter once there life is up. Completely ruining your engine. Ask me how I know

Jennifer Curtis

Ceramic bearings are good for environments where
metallic bearings would rust or corrode, but not
where there are reciprocating loads.

Jenny

Navi747

am

Navi747

yea exactly, tats why am planning to use it in my mini jet turbine, heard its the best for high speed & high temperature applications.

you have any experience with them, anything tat I should know before taking the plunge...

Navi747

@ nellsey : u learned thru experience I guess...!!! any words of wisdom for me...?!
am looking to use in a mini jet turbine

init4fun

www.bocabearings.com

nellsey

Sorry can't offer any advice on turbines as I don't run them.
Perhaps a call to Boca Bearings might help?

Navi747

Thank you bro, I was searching so long to find one...

init4fun

I'm happy to have helped you . I personally have never used a ceramic bearing because as was said earlier they don't hold up well to the pounding loads a reciprocating engine puts on them , but I have done business with Boca Bearings more times than I can count (all of my glow engines have Boca stainless steel bearings in them) and the company has done right by me every time . The best thing about them is that you don't need to know the size or pedigree of your bearings if your talking glow engines , you can just call them up and say "I need bearings for an OS 90 four stroke" for example and they know the right bearings to fit . In fact , if your turbine is a commercially manufactured unit like a "Jetcat" or "Wren" for example , they may well have the specs for those like they do for the glow engines . Since your doing a turbine that has no reciprocating motion the ceramics should be an excellent choice , just as long as they are rated for the heat they will encounter in the turbine environment .

I wish you the best of luck with your project and remember , pictures are always welcome .

PS , this is my Saito 270 (45 cc) four stroke twin , having it's first test run after I installed a set of Boca Bearings in it .....

on_your_six

My Feedback: (11)

Maybe you should be talking to the turbine manufacturer and using their recommendations. Kinda like asking for investment advice in a *****house.

init4fun

Maybe he already did and got the typical company line of "use our $100 special bearings or else" that most manufacturers will parrot to such questions , and then came here asking folks who may actually have some real advice to offer .

Navi747

Did u just call yourself a ***** ??!!