Best Material for gear?
Best Material for gear?
(OP)
We need to make a timing gear for an automobile engine. What tool steel would be the best to use for this application?
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RE: Best Material for gear?
Dis-simular metals and hardness' give a longer wear life and the iron has graphite which is a lubricant.
RE: Best Material for gear?
steels which have nickel in them and give
you good ductility as well as strength and
good cold temperature properties.
RE: Best Material for gear?
If we use the 4340, how hard should it be heat treated to?
RE: Best Material for gear?
Vlad Marius Dorin, UNIMET-CUG Co., Cluj-Napoca, Romania
RE: Best Material for gear?
I am curious about why you need a new steel crankshaft gear. I've seen old Chevy inline 6 and 4 cyl. engines with failed phenolic cam gears, but the steel crank gear always looked fine.
In any event, a case-hardened 8620 gear should work fine.
RE: Best Material for gear?
the loads cannot be very high.
Almost any tool steel should
be sufficient. I too assumed
initially you were using a
metal chain. Even a normalized
steel should work in this
application.
RE: Best Material for gear?
RE: Best Material for gear?
This is a very early Rolls Royce engine, the original gear is some type of hardened steel, but I don't know what the alloy is.
Would 8620 be better than A2 or D2? Is low 30's HRC enough?
RE: Best Material for gear?
Yes.
RE: Best Material for gear?
RE: Best Material for gear?
RE: Best Material for gear?
RE: Best Material for gear?