Bench Mill choices

[Oldseabee]

Head is off the mill and now disassembled. All bearing will be replaced. The 2 lower bearings had way too much grease in them and the lower of the 2 show heat signs baking the grease onto the outer bearing shell. All the major parts such as quill and spindle are ok. Not much wear. Should be a nice tight machine when finished.
In looking at bearings I found some that are a Duplex double row the correct size. I spoke with a Spindle rebuild shop and he said that's what they use but a Class 4 for better performance. I may look into that.

 

[Oldseabee]

And for removing the index rod-screw #696-007 once I had enough material stick out I chucked up my drill and backed it out, saves time and fingers. I have included some other pictures of the tear down.

 

[Oldseabee]

I spoke with 2 Clausing experts today. Both said Absolutely No Grease at all. 20 weight oil only on the lower spindle bearings. They said that over greasing kills these bearings. And they don't need a large volume of oil, just a little bit goes q long way.

 

[Oldseabee]

Happy Thanksgiving.
I think I found yhe culprit causing the broken gears. No bronze bushings. So while it apart I'm going to bush it. I'll take pictures.

 

[Oldseabee]

I spoke with Brian Axe in Clausing parts depth. Most of the parts I need are thankfully in stock. Just for ****s and giggles I asked about the spindle. Yes in stock with sticker shock. $1,800.00. Thankfully mine is ok.
I could part it out and triple my money. But I think it's a keeper. Brian will also email manuals and parts drawings.

 

[Oldseabee]

I have a question about bearings. My lower spindel bearings are a matched set class 4 . The next bearing up the shaft is a sealed bearing. Mine was a MRC 204 SFF.
Sealed. I'm getting class 4 for that one too. The upper spindle bearings are a matched set of 9105 pp4 sealed class 4.
Do I really need a matched set for the 9105 bearings. My mills spindle bearing only matched on the lower 2. It had 3 different brands to.

 

[Oldseabee]

Tooling, tool holders. Should I purchase a mt2 to bt30 adapter or just use straight mt2?

 

[matthewsx]

Tooling, tool holders. Should I purchase a mt2 to bt30 adapter or just use straight mt2?

Probably best off with MT2 to ER chuck, but a set of MT2 collets will work too.

 

[Oldseabee]

Probably best off with MT2 to ER chuck, but a set of MT2 collets will work too.

I was lucky in that it came with almost a full set of collects. I just like the idea of some adapter type that stays in the spindle and the use of a tool to switch cutters. Seems more simple and Rigid that way. This machine has a very small diameter spindel. Maybe a replacement spindle in a bigger size as the quill is good sized.

 

[matthewsx]

I was lucky in that it came with almost a full set of collects. I just like the idea of some adapter type that stays in the spindle and the use of a tool to switch cutters. Seems more simple and Rigid that way. This machine has a very small diameter spindel. Maybe a replacement spindle in a bigger size as the quill is good sized.

ER32 would be a good choice.