Problem- Obsolete Norma bearings...J head

[tom in nh]

I am rebuilding a Bridgeport J - head (machine serial # 101216 ; 1967 vintage / J - head serial # J - 99718 ; not sure if it is original to this machine).
The following Bridgeport part numbers are from April 1981 / M - 105H catalog.
So far I have removed the following pulley and bull gear bearings (not yet on the spindle bearings):
Norma thrust bearings (qty. 2) part # XH 125 / Bridgeport # 1190230
Norma thrust bearings (qty. 2) part # XH 124 PP / Bridgeport # 1190232
and Norma bearings (qty. 2) part # 203 - KK / Bridgeport # 1180235
Could you offer any interchange information (part numbers) / preload specs. as these are getting replaced. I have read previous posts, but no actual bearing house part numbers are interchanged to these relics.
Your assistance is GREATLY appreciated (special thanks to Den for sending me here).
Thanks in advance to all that respond,
Tom

[mactec54]

Hi Tom in uh
Just measure the OD / ID & how wide they are plus the type ball/thrust/sealed Etc & with having that information any good bearing supply will be able to get what you want/need

[tom in nh]

Bearing supply house quoted $ 550.00 for the 4 thrust bearings. They were ABEC 7 bearings. Can I get away with lower quality ie: ABEC 3?

[mactec54]

HI Tom in uh

They are charging to much should be around $380 max this is your spindle bearings right
no ABEC3 would not do for spindle bearings but any of the others in the head they are fine for & were they need shields get 2RS rubber shielded

[tom in nh]

Mactec54,
These are not spindle bearings...
Tom in NH

[mactec54]

Hi Tom of uh

The only place you need ABEC7 are in the spindle all the rest can be ABEC3 can you do a photo of the bearings you are replacing & were they are from/what part the fit on