Today in the shop "Let's look in side a powerpro quill"

[jarea]

I have a Model 500 that I am restoring and it has a single bearing quill shaft and a poly-V belt drive. Can I replace this shaft with a double bearing version from a 510 or 520 or are there some possible incompatibilities between the two shafts?

The earliest version is not desirable IMO because you cannot replace the inner bearing.

Hi David,

Do you know if there is any way to identify if the candidate replacement quill assembly is one of the earliest models that you refer to?

[DLB]

I have a Model 500 that I am restoring and it has a single bearing quill shaft and a poly-V belt drive. Can I replace this shaft with a double bearing version from a 510 or 520 or are there some possible incompatibilities between the two shafts?

The earliest version is not desirable IMO because you cannot replace the inner bearing.

Hi David,

Do you know if there is any way to identify if the candidate replacement quill assembly is one of the earliest models that you refer to?

If you buy new from SS you'll get the version described above in this thread, both bearings are replaceable. Of the other two versions I know about, they are outwardly identical as far as I know. The difference is on one the two-piece spindle is held together with a roll (aka spring tension) pin and can be easily separated for bearing service. Its predecessor's two pieces are held together through some other process, I've never heard of anyone getting one apart and back together.

- David

[jarea]

The earliest version is not desirable IMO because you cannot replace the inner bearing.

The difference is on one the two-piece spindle is held together with a roll (aka spring tension) pin and can be easily separated for bearing service. Its predecessor's two pieces are held together through some other process, I've never heard of anyone getting one apart and back together.

- David

I think I saw on a Jacob Anderson video that that earlier version was glued together. So looking for the roll pin is the secret to identification.

Thanks - Jim