Material for ball bearing at high temperature

[davidmoul]

Hello everyone.

Does anyone know a material for a ball bearing that have to support 300°C in service, which would be quite simple to find and supply?

We have specific ball bearing designed, and we would like to change the material to be able to design a machine supporting 300°C. Any idea?

Thank you for your precious help!

 

[arunmrao]

Is it possible to cool the bearings by a suitable jacket around it,so that you could avoid the use of expensive high temperature bearing materials?

Chocolates,men,coffee: are somethings liked better rich!!
(noticed in a coffee shop)

 

[TVP]

Try ceramic (silicon nitride) bearings:

http://www.timken.com/en-us/products/bearings/productlist/ball/precision/Pages/ceramic.aspx

http://www.cerbec.saint-gobain.com/main/home.asp

http://www.cbrbearing.com/ceramic_hybrid_ball_bearings.htm

http://www.vxb.com/

 

[EdStainless]

You will also need high temp synthetic lubricant. Look on the Kytox web site.
Ceramic bearings, at least ceramic rollers are probably needed for this.

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