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Sorry, I meant to update this thread earlier. At the suggestion of TinkerCAD I gave Fusion 360 a try. While it can still be frustrating at time, I've been able to do what I want with it. Plus, it's...

I've been trying to find an easy to use CAD which I can quickly learn, can produce technical drawings, preferably works offline, and can export both to CNC and 3D printers. I found TinkerCAD and love...

What is a good preload in pounds/newtons to shoot for with new AC spindle bearings on a X2 mill?

Currently I have 105 pounds (give or take about 10 pounds) of preload, which is considered a...

Is there anything in particular you'd recommend? I have Lucas Red and Tacky and Bel Ray Marine on hand.

What's a good grease for a low speed spindle which isn't going to see over 2,000 RPM? It uses 7206 angular contact ball bearings with a medium/heavy preload.

If Kluber NBU 15 is the stuff to use,...

I'm fitting a new spindle to my mini lathe so I can upgrade to a 4" chuck without an adapter plate. However, the register on the spindle is 72.02mm while the register on the new chuck is only 71.9mm....

Well, the cheapest KBIC I found was a KBIC-125 uprated to 125VDC, so no worried there.

However, I'm now looking at upgrading my mini lathe with a KBIC as well, and would like your advice on which...

I've checked the headstock alignment before, and it goes me 0.004" taper over 12", which I think it pretty good for a mini lathe.

Roger. Once I get the new spindle mounted I'll just skim it.

I'm installing a new 4" spindle in my mini lathe. Once it's installed, should I take a very light facing cut on the surface of the spindle to make sure it's square and flat?

I'm getting ready to upgrade the my mini mill with a KB driver. I see the KB boards are available in 90VDC out up to 125VDC out. The motor on my mill is labeled 110VDC, but it's also labeled 4/5HP...

This isn't my auction, but it's a great deal, and I'm sure someone here could make good use of them.

SKF Bearings 7206 C P4 Set of 2 | eBay

I know replacing the stock bearings in the mini lathe with tapered roller bearings is a popular upgrade, and one I'm looking at right now.

However, my research shows that the commonly available...

I did some more testing to try and correlate how loose the bearing fit can be before the bearing will spin on the spindle, and my results were no encouraging at all. Basically, the stock press fit on...

I know this is an old thread, but I've been going through an reading all of NC Cams replies and have learned a huge amount from him. I'm grateful he was so generous with his knowledge, and it makes...

I just replaced the stock bearings with SKF 6206 sealed bearings and they're running well right now. They definitely run hotter than the stock bearings, but still within allowable temperatures....

I just finished replacing the spindle bearings for the first time, and it made the shortcomings of the current system very clear. The mill currently uses 6206 deep groove radial bearings both on top...

No way to seal them. I did find out that SKF makes sealed AC bearings, but they cost $70 each.

I have a X2 mini mill which I'm currently replacing the spindle on. Since it's already disassembled, I'm looking to upgrade my bearings as well, and am looking at tapered roller bearings as an...

For those people running tapered roller bearings, how are you keeping the grease inside the bearing? Since it's a vertical shaft, since the grease naturally going to flow out of the bearing over...