Bushing material-babbit or bronze?

[turbovanman²]

Which one is stronger? Did some surfing and bronze is rated for a higher load and temp but others prefer babbit for high speed operation?????????

[bakes]

I would think what the other material is running against it would equal into the type needed.

[turbovanman²]

Well this is for our A413 bushings.

[zin]

UuBronze, Babbitt is more forgiving and softer, which generally makes a good, long term solution, but won't take as much abuse.

We should also consider what breaks if the bushings lives. Sometimes something small like this acts like a fuse, failing prevents more expensive breakage. I kind of doubt that's the case, but not knowing the particulars, thought it'd be wise mention it.

Mike

[turbovanman²]

Tired of going thru pump bushings and the front sun gear bushing. The pump bushing I might consider putting a roller bearing in or boring it out to accept the A604 bushing, its 3 times as thick as the A413. I defineatly can't rollerize the sun gear bushing.

[135sohc]

What is the OE bushing ?

[turbovanman²]

No idea, but I would guess babbit.

[RoadWarrior222]

Bronze is basically a little porous, so it has oil in the surface, it's hard. Babbit is soft, easy to form/wear to clearance, but is slippier WHEN surfaces hit, keeping shafts from being marred so much by being worn away itself.

With babbit you need a largeish area, like in a crank bearing. If you know the RPM of the shaft, you could figure how that and the surface speed of the shaft compares to 8.000 crankshaft rpm and the surface speed of the crank journal.

Anyhoo, you're balancing frequent replacement of shaft against frequent replacement of bearing.

Might have some engineering texts that can help, but might not get to looking for them and absorbing them until later in the week.

[turbovanman²]

Come on RW, use your noggin, the TC spins at ? You can figure that nugget out, :nod: