RBC Fibroid dry bearings?

[Groo]

Anyone have any experience with these things?
The specs look too good to be true.
A basic 1" ID x 1.125" OD x 1" long CJS1616 has a static load rating of 38,000 lbs and costs less than $8!
Is there a reason I shouldn't switch all my low speed stuff over to these things?
http://rbcbearings.com/literature/pd...glide-2013.pdf

Similar Threads:

• Ball Bearing Supplier, Deep groove ball bearings, small ball bearings, steel ball bea
• Bearings
• skate bearings versus linear bearings
• Double Bearings Or Quad Bearings?

[RICHARD ZASTROW]

As long as you can keep the velocity below the recommended surface speed (with some safety factor) for the weight the bearings will see, should be OK.

Dick Z

[Groo]

I've decided to use them exclusively in a new hydraulic mechanism I am getting ready to prototype.

I noticed the wear testing they did was quite a bit below the load capacity they advertised, so I'll be equally conservative where possible.
I also saw they spec a hard smooth surface to wear on. I decided be a bit overly conservative again and to just use hydraulic rod stock for the shafts, and skip fine machining and surface treatments.

I'll report back after some testing.

[RICHARD ZASTROW]

Check the material spec's. Some perform better if lubed, some swell if lubed. Is the bearing going to see contact with hydraulic oil?

Dick Z