First off - Apologies if this is the wrong forum for this.
I've been entertaining the idea of building my own spindle for some time now and I feel overwhelmed with all the potential data.
Criteria:
-Using a BT30 Taper/Holder (50mm seems about right)
-Spinning at approximately 6000 Rpm (Aluminum cutting with 150ipm at max). Any higher and I feel that balance would be a huge issue.
-Drilling/Reaming operations on alu as well as milling.
-Over all combined accuracy across the machine (neglecting the spindle) is ideally .003+/-
-I am in Canada
Other data/Thought process
I (believe) I need 3 bearings in total. Two angular contacts and one "regular"
Questions
-What am I looking at for these bearings? Can I get away with These? rather than going for an actual spindle set or am I just cheaping out and setting myself up for failure later on down the line?
-Where should I be looking for these/Project materials in general? Ebay seems the obvious choice but in particular are there sites with decent customer service/etc I can frequent? I'd rather give them my money if I have the choice.
-I've clearly never taken on a project like this before. I can machine the parts no problem but I'm really ignorant on things like cooling the bearings, over all loads I will encounter and things of that nature. Any input would be great.