Bearing Press fit
Bearing Press fit
(OP)
Hi all, I'm new to the site and I'm trying to find an answer to this. I currently have a cast metal wheel hub and when measured between the hub and the bearing race it is a 5000 inch press.
I have made a billet aluminum hub out of T6061. I was thinking of making the tolerances to have an 8000 press fit for the bearing race.
So my question is how much of an expansion is there with aluminum if it were heated to say 400 degrees?
Would it expand 3000 of an inch and then I could press the bearing race in.
My concern is that the race would spin in the hub if it became to hot and under racing conditions I see this happening.
Thanks for your comments
I have made a billet aluminum hub out of T6061. I was thinking of making the tolerances to have an 8000 press fit for the bearing race.
So my question is how much of an expansion is there with aluminum if it were heated to say 400 degrees?
Would it expand 3000 of an inch and then I could press the bearing race in.
My concern is that the race would spin in the hub if it became to hot and under racing conditions I see this happening.
Thanks for your comments





RE: Bearing Press fit
Use an FEA thermal analysis to get a more accurate deformation profile.
Kevin
RE: Bearing Press fit
circumference=PI*diameter
RE: Bearing Press fit
If anyone could direct me where I could find specs like that I would appreciate it.
Thanks!
RE: Bearing Press fit
Regards
pat
RE: Bearing Press fit
RE: Bearing Press fit
In the stuff we make (precision machine tool spindles) the heat source is often the bearings themselves. Revving up rigidly preloaded hi-speed bearings in a thick cool housing is like manually winding an anaconda around Jon Voight. It's Upsetting for almost everyone ivolved.