Hi All

First post so be gentle :-)

I have a MM32L that I have just done a spindle motor conversion on using a 3.6KW servo. I have upped the RPM from 2200rpm to 5000rpm and as you might imagine my bearings are getting a little hot. I have identified and ordered suitable high quality replacements for the quill drive so I then decided to have a peak in the main spindle body (looks a lot like a PM30 spindle)

I was expecting to see taper roller bearings but I see what I think are angular contact bearings. Has anyone else had experience of this machine and can confirm this. I am thinking I might just be able to re-pack them with the right amount of klubber grease and they would be good to go?

Attached are a couple of the bearing and the motor conversion.

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