How to address this wear

[rficalora]

Once I finally was able to get the chuck off of the lathe I'm refurbishing, I removed the spindle seal retainer to get the numbers off of it to get a new one (the oil leaked out when I had filled it prior to starting the refurbishment). This is what I found, which I figure will just eat up a new seal. I'm assuming I could get a speedi-sleeve for it but that seems like it might make future bearing replacement harder since the speedi-sleeve would be in the way of getting the bearing off. Is there a better way to address this or is the speedi-sleeve the way to do it?

 

[ddillman]

Speedi sleeve it. Or remove the shaft have it metal sprayed. I don't know how straight they stay after spraying.

 

[Nutfarmer]

Sometimes if it can be polished smooth enough the new seal will work even if the shaft is a few thousands over size

 

[markba633csi]

That looks too rough to polish out, probably have to re-grind that or metal spray
What brand/model of lathe? The sleeve is probably the cheapest/easiest way

 

[Charles scozzari]

Sometimes if it can be polished smooth enough the new seal will work even if the shaft is a few thousands over size

Shim the seal outward to a smooth area in a pinch. Did on heavy equipment many times until repair. The seals themselves would score the shafts.

 

[rficalora]

Thanks everyone; I really appreciate the ongoing help as I work through this. I'd not heard of metal spraying; I'll have to research that to see what it is and if it makes sense financially for this lathe. It's a Taiwan import (Tida/Samson 5aa) that I picked up for $1,400. Shimming it out might work; I have it apart but seem to recall there only being about 1/4" between the retainer and the chuck. Although, thinking as I type, I suppose I could make a new retainer that accounted for the spacer. Will look into it.

 

[jbobb1]

I did a lot of metalizing where I worked and we never sprayed lip seal surfaces. Have it sleeved or do it yourself if you can.

 

[RJSakowski]

The sleeve will be the easiest approach. If/when the bearing needs replacing cut the sleeve and replace with a new one when the bearing is reseated.

 

[MrWhoopee]

Definitely sleeve it. It looks like the spindle is still in the lathe, so turning it should be no problem. Be sure to oil & protect the bearing.

 

[benmychree]

I would likely have it ground to cleanup and hard chromed and finish ground.