Sintered Bronze bearings for radial/perpendicular loads?
 

Generally speaking, how do Sintered Bronze bearings compare to
ball bearings for radial/perpendicular loads?

Thanks.

Sintered Bronze bearings for radial/perpendicular loads?
 

On Feb 4, 5:59*pm, John Doe wrote:
Generally speaking, how do Sintered Bronze bearings compare to
ball bearings for radial/perpendicular loads?

Thanks.

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

Sintered Bronze bearings for radial/perpendicular loads?
 

"John Doe" wrote in message
eb.com...
Generally speaking, how do Sintered Bronze bearings compare to
ball bearings for radial/perpendicular loads?

Thanks.

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.

Sintered Bronze bearings for radial/perpendicular loads?
 

On Feb 4, 6:59*pm, John Doe wrote:
Generally speaking, how do Sintered Bronze bearings compare to
ball bearings for radial/perpendicular loads?

Thanks.

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

Sintered Bronze bearings for radial/perpendicular loads?
 

On Feb 4, 7:59*pm, John Doe wrote:
Generally speaking, how do Sintered Bronze bearings compare to
ball bearings for radial/perpendicular loads?

Thanks.

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

Sintered Bronze bearings for radial/perpendicular loads?
 

On 05 Feb 2011 01:59:53 GMT, John Doe wrote:

Generally speaking, how do Sintered Bronze bearings compare to
ball bearings for radial/perpendicular loads?


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

--
Ned Simmons

Sintered Bronze bearings for radial/perpendicular loads?
 

Ned Simmons news nedsim.com wrote:

On 05 Feb 2011 01:59:53 GMT, John Doe jdoe usenetlove.invalid wrote:

Generally speaking, how do Sintered Bronze bearings compare to
ball bearings for radial/perpendicular loads?


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.
--




















--
Ned Simmons


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Sintered Bronze bearings for radial/perpendicular loads?
 

On 2011-02-05, Joe wrote:
On Feb 4, 7:59*pm, John Doe wrote:
Generally speaking, how do Sintered Bronze bearings compare to
ball bearings for radial/perpendicular loads?

Thanks.

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.

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.

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