jsburger wrotedusty wroteI don't share your concern about the bearings unless you are talking about running the headstock fullbore. The old bearings have been working at the OLD top end for many years. Just don't load them at 10,000rpm (anything above 7200).
What bearings are being used in the PowerPro Quill.
Huh :confused: :confused:
If I put an old quill in a Power Pro head stock and can't/shouldn't run it at "full bore" what is the point of a Power Pro? Yes there other advantages but com'on man. 7200 RPM I thought the standard SS was 5200 RPM (5700?), half the Power Pro. Why do you think the DIY kit comes with a new quill? As had been said the part numbers have changed, sooo...
The context is important!!! This message was sent at a time and to a person regarding using an old quill to chase down (or isolate" the cause of unwanted vibrations.
Of course you are going to want to operate at 10,000 rpms with your new PowerPro. At least now and then. For curiosity, how frequently do you get up into that range with the PowerPro.
Yes, reference to 7200 is an error and should have been 5200. No change in context, however.
