[bazzeruk]

Hi All

I have a VM32 (bought from CNC4YOU) That I have fitted with a 3.6KW servo motor for the spindle drive. I have geared it 2:1 and this gives me a max spindle speed of 5KRPM. I am concerned about the standard bearings being upto this, bearing in mind the standard max speed was 2400RPM. I also designed and 3D printed a bush to help take out any movement in the quill/drive interface and that has made a massive difference to smoothness and noiuse,

So was interested in what people thought about running the standard bearings or do I need to upgrade. (I will upgrade anyway but I want to cut some parts in the mean time)

Cheers

Bazzer

Edited to add annoyingly I can't seem to rotate that picture now I have posted it :-)

Edited again to add I can now see I have posted this in the wrong forum and should probably be in DIY CNC, but can't find a way of moving it or deleting it.

[DavidR8]

Hi, I have the same mill bought direct from Weiss. Do you have more details about your servo motor conversion?

[LongRat]

I would monitor the bearing temperatures after a running-in period under no cutting load. I did a thread on this when I converted my machine to belt drive. There's a good chance it will be fine, but not 100% certain. Much will depend on the amount of preload on the bearings.
I would be really interested to see details of your printed bush for quietening the machine down.

[jason003]

Hi, what the part number of bearing are you use for?