That's a pretty broad question.
Bearing theory, materials, design and applications is encompass a huge
amount of information.
alt.mechanical.engineering is probably a better group to ping.
It used to be more active but got somewhat over run with spam. :(
I would suggest googling sintered bronze bearings / bushings and then
do some reading.
Consider narrowing your inquiry. You might get specific answers to a
more specific question.
How much load and what kind of speed along with type of lubricant
supply would be pertinent questions. You can get quite good wear if
the load is constant but not heavy, the RPMs are moderate and oil is
supplied so that the wedge effect doesn't go away. Roller bearings
are used where there's really heavy and/or intermittent loads(like a
car wheel hitting potholes), constant lubricant supply is hard(ditto)
or where a constant film of lube can't be maintained. For decades,
don't forget, railroad cars used plain bearings with stuffing boxes
filled with oily waste for lube. Same with old-timey overhead belt
drives in machine shops, not a roller bearing to be seen. Not to
mention main bearings on most car engines. They're not sintered
bronze, but ARE plain bearings, as long as oil pressure is maintained,
they don't wear.
Archive.org has some elementary books on bearings, lubrication, and
design of same, might be some downloads would be in order.
extreme , irratic loads , exteme heat ( TurboChargers )
Ball Bearings get ya long life and very low friction ..
BB are modrn luxury , reduce noise ..
BB are to perfect machinery , make ya proud
it is quiet and effecient ,,
But when the goin gets tough ... ya switch to
tapered rollers , then to bushings ( Catipillar
tracked backhoe )
Send me ur email and you can post at a new
Its PUBLIC , but only to read ,
You can post your head , but only if i add ur
to CREATESTUF GOOGLE GROUPS
Commonly used as pilot bearings for transmission input shaft in autos.
Sintered bronze with lube content usually marketed as Oilite. Nice
stuff to have around the shop to make emergency repairs or even
improvements on machines, whatever. Not often found in auto
transmissions, however. The usual ball and roller bearings are the
FWIW The MGA sports car used needle roller bearings in the center of
the flywheel as a pilot bearing.
But -- the throwout bearing in the same car was a ring of
graphite captive in a forged cup against a ground steel ring in
the clutch assembly.
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