Q: How long does the oil last?
A: An Oil Filled/Sintered Bronze Bearing with a
3/4"
diameter and 1-1/4" in diameter and 1-1/8" long
was run at 1800 RPM for a total of 1,321,920,000
revolutions
without exhibiting wear or scoring of the shaft.
On a high speed application a sintered bronze bearing with a
9/16" ID and 3/4" long was run at 9500 RPM for a striking
456,000,000 revolutions without depleting the oil
content and without scoring the shaft.
Q: Can different oil or grease be used in sintered
bronze bushings:
A: Yes. High temp, wax based ( anti-migration
Q: What is the porosity (oil by
volume) of a sintered bronze bearing?
A: 22%
Q: How do Oil Filled/Sintered Bronze
Bearings perform in shock
and impact applications?
A: An automotive steering gear assembly was run to
destruction. Conditions
were an impact load of more than 6,000 lbs. PSI at 800
RPM. The sintered
bronze bearing and mating shaft worked perfectly.
Q: How do Oil Filled/Sintered Bronze
Bearings perform in high
speed applications?
A: On a high speed, portable tool operating at
20,000 RPM with a
hardened and ground RC 60 shaft our bushings have
lasted far beyond
the OEM Mfr's lifetime requirements.
Q: How do Oil Filled/Sintered
Bronze Bearings perform in
severe duty applications?
A: On a rigorous railroad application Super ( 863 ) Oil Filled Bearings
gave an outstanding 631,000 miles of travel over
a 57 month period -
and were approved for further mileage! Until our
bushings were used,
the normal life was 225,000 miles.
Q: Can you lap or ream a sintered bronze bearing?
A: NEVER LAP a Sintered Bronze Bearing! The
abrasive will embed itself
into the bearing/oil and turn it into a lapping
compound - You will quickly
destroy your shaft.
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