01-07-2019, 05:48 PM
That's interesting. I am reassembling a 1928 axle and have clocked the run out at 0.008" . The measurement made whilst one carrier bearing outer held in the lathe 3 jaw chuck , and pressure brought to bear on the other bearing outer race via some spacers and the tail stock. mag mounted DTI at on saddle and onto back face of the crown wheel.
It is a bit awkward allowing for the pitting in areas but, my run out appeared to be coincidental with one of the three, short studs.
I was measuring the run out as when bluetoothing, I felt a resistance in one area of crown wheel rotation.
I have now dressed round the stud hole with a dremmel and mini wire brush and lightly filed the same area- or that third of the carrier face. That is the face that is on the half of the carrier that encases the planet gears . First attempt reduced run out to 0.003". I may try boxing up and seeing if I can feel a tighter point when checking the mesh with engineers blue........ again.
I wondered if anyone else has a better method of correcting run out
regards
Charlie
It is a bit awkward allowing for the pitting in areas but, my run out appeared to be coincidental with one of the three, short studs.
I was measuring the run out as when bluetoothing, I felt a resistance in one area of crown wheel rotation.
I have now dressed round the stud hole with a dremmel and mini wire brush and lightly filed the same area- or that third of the carrier face. That is the face that is on the half of the carrier that encases the planet gears . First attempt reduced run out to 0.003". I may try boxing up and seeing if I can feel a tighter point when checking the mesh with engineers blue........ again.
I wondered if anyone else has a better method of correcting run out
regards
Charlie