Sintered Bronze bearings for radial/perpendicular loads?

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.

cheers Bob

I've had bad experiences with that type of load on Bronze bushings. I've used Lignum Vitae wood bearings in slow turning high radial loads; MUCH better than Bronze or ball bearings.

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.

Stan

_____________________________________________

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 )

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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 norm.

Joe

In general, ball bearings roll and bronze bearings slide. To get a more useful answer, ask a more specific question.

FWIW. Already happened, and totally enjoyed.

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.

Enjoy, DoN.