Crankshaft Paul, crank shaft finally arrived. I need guidance on how
to trim this, and specific dimension for the plug that goes on the end
of the crankshaft, length of the shaft, to support the thrust needle
bearings, needle bearing part numbers, etc. I would like to plan for the
simplest and lightest drive combination using the attached methods for
the first shot, have another crankshaft piece in bound for the second shot.
Milo
ROBERT speak to me, I need that clutch plate NOW. Any body know Robert
help me contact him. Paul, In the colored cutaway picture of your new
design psru (middle picture) there are several short pink cylindrical
shapes that appear to be extensions of the planet gear shafts, visible
between the aft end of the planet set and the aft thrust bearing. May I
ask what they represent?....perhaps bolt heads that connect the planet
carrier to the prop shaft? Also, I am wondering about exactly what
contacts what at that aft end of your psru... does the front (forward)
surface of the planet carrier cage simply contact the aft surface of the
thrust bearings directly? If those pink lugs ARE bolt heads, can THEY
also contact the aft thrust bearings directly? If not, it might be
tricky to achieve contact with the aft thrust bearing. Thanks again.
Gene Kahn
Those represent the heads of the 5/16 bolts holding the planet carrier
to the output shaft. It will also need a small dowel pin or two for
absolute alignment. The one piece housing shown here is not going to
work as the stock Lyc bearing shell needs crush. This is what works.
Paul Lamar
Paul, So that there is no misunderstanding the first one will employ needle
roller bearings supporting the shaft, automatic transmission bell housing,
and one piece housing.
I will start whittling on the shaft in a few days, and hope to do the whole
shaft to send to you for the mold drawing dimensions.
The crankshaft part measures 2.375 inches in diameter where the roller
bearings fit, but I am having difficulty locating a bearing with a 2.375
bore, do you have a particular bearing in mind? Also the bearing surface is
@ 5.125 inches long do you want it shortened up any when I put it in the
lathe?
milo
Hummm that is a real problem. You cannot turn the shaft down cheaply as
it requires a hard surface with an excellent finish.
Fortunately Timken has a 2.375" shaft needle bearing.
see the jpg for part numbers and RPM and load. A bit large for a needle.
Ross used 2 inch witch have a higher max RPM.
Look for a bearing place in Seattle that sells Timken.
Paul Lamar
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