Re: bearing theory

Sven:

Hydrodynamic bearings are a standard topic in machine design texts. I'm
somewhat familiar with "Mechanical Engineering Design", 5th Ed, Shigley &
Mischke, and "Fundamentals of Machine Component Design", Juvinall &
Marshek. These both briefly cover the design of hydrodynamic bearings,
Shigley a little more than Junivall. Each give enough for a shot at
design, lotsa charts & graphs. This is not trivial with many parameters to
consider. They both cover only round bearings, not three lobed.

"Machinery's Handbook", at least 26th Ed., has what looks like a good
section on hydrodynamic bearings. If you are looking at an existing design
I'd start with this.

These should be available at a University Library or technical
bookstore? I'm sure there are reference books that go into more detail also.

What are you trying to do? Are you designing a bearing or trying to get
one working correctly? I probably can't help much more but contact me off
list if you would like.

Thanks.

Hugh Currin
Klamath Falls, OR

At 09:39 PM 6/13/01 -0700, you wrote:

>Hello Friend,
>Trying to help out Tom Eldredge on his lathe I try to find some
>theoretical bases on the design of hydrodynamic bearings.
>I tried to search the internet for several of hours already
>but didn't find anything yet.
>In my construction books (that never arrived in Costa Rica)
>I had a very good explanation how the 3 high spots on the
>bearing keep the spinning shaft floating in the centre.(together with
>measurement examples)
>It is the same theory that is applied in crankshaft bearings.
>
>Does anybody know where to access this kind of material?
>Thank You very much.
>Sven Peter