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14 1/2" Spindle Bearings

rocketmench

Plastic
Joined
Nov 1, 2014
Thank you so much for your response. When you measured the ID of the caps to provide the bearing OD dimension, did you shim the caps first? If so, how much?

Also, does anybody here know what the journal bearing sizes are for the 14.5, and are they the same for the 16?

And last question, on my main forward bearing, when out of the machine it does not engage the expander, meaning the slot is wider than the dove tail on the expander. A prior owner must have removed the caps without releasing the expander first and there is visible damage in the dovetail slot on the bearing. I'm assuming that the bearing, even when loose, should capture the expander?
 

Rogue Willie

Aluminum
Joined
Nov 1, 2013
Location
Idaho
Thank you so much for your response. When you measured the ID of the caps to provide the bearing OD dimension, did you shim the caps first? If so, how much?

Also, does anybody here know what the journal bearing sizes are for the 14.5, and are they the same for the 16?

And last question, on my main forward bearing, when out of the machine it does not engage the expander, meaning the slot is wider than the dove tail on the expander. A prior owner must have removed the caps without releasing the expander first and there is visible damage in the dovetail slot on the bearing. I'm assuming that the bearing, even when loose, should capture the expander?
If I remember correctly, I shimmed the cap to get the bore as round as I could before measuring it.

A previous owner to my machine had pulled the caps off without releasing the expanders which caused all the damage to my bearings making the expanders useless. That is why I made new bearings and expanders.
 

RedCrayon

Plastic
Joined
Dec 2, 2022
Evening,

This thread has been very helpful, though I do have a question.
What is the thread size for the expander/expander screws?
 

rdenney

Plastic
Joined
Aug 10, 2022
The parts manual doesn’t specify the PT1165RH1 screw, though it is the same for all four sizes of the lathes in that series.

But it defines the washer, “183x103”, as a “#8 (bolt size)”.

So, most likely 8-32, probably a filister head and of the correct length, which might be an inch. I would not guess on the length, however. Too short will engage too few of those soft bronze threads, and too long will dig into the spindle journal.

Rick “should be easy to measure” Denney
 








 
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