Bridgeport spindle bearings

This one is finally starting to get noisy, a bt 40 cartridge on a horizontal
cnc....1984 or so vintage, textron.

Looking for the actual bearing numbers, hoping perhaps to find a set prior
to my actually pulling the damned thing apart.

The manual ( of course ) only gives me the bridgeport part ##

Looking at the parts brakedown, it's a triplex angular contact set at the
taper end that I'll be needing....( the drive end bearing they've listed as
being a nn3011k/sp)

Appreciate any info.

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SVL



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