"Lloyd E. Sponenburgh" fired this volley in news:XnsA20E55E142A65lloydspmindspringcom@216.168.3.70:
Um... revising that... they are "prelubricated bearings", as-supplied, and listed as 'permanently' lubed. But Vactra #2 flies around in that zone all the time, so I figure they probably end up getting washed.
Lloyd
Not on that particular machine.
Figure out what bearings it takes, source them from ebay, and always keep a spare set on hand.
Use premium grease and don't overfill. Don't hammer on them, but especially don't hammer on the outer race when fitting onto a shaft, or on the inner race when fitting into a bore.
Why exactly do you thinkl that they need be replaced?
I think that oil only luricates the quill/housing sliding interface on those and that the bearings are "lifetime lubed" but I could be mistaken.
Pretty sure you can upgrade those by reducing the spacer lengths and adding more bearings to the stack (quad instead of duplex set)....something to look into, perhaps...
I recall there being a toilet seat up there, then again once you've seen a few dozen knee mills they kinda all start looking about the same.
The price was certainly right ($20) and Precise still supports it. I need to get a couple collets and collet nut, but otherwise it should make a great aux spindle on the CNC mill once I make a mount for it. The mill spindle only goes to 4,500 RPM so a 45,000 RPM aux will be great for work with tiny cutters.
Wow, I thought I got a deal on mine! The collets were about $80 each, I think, when I called.
Jon
I ran across another company that seems to do all specialty collets that has them for about $40.
Pete - do you remember the name of the company that deals with specialty collets?
Hul
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