You never did mention your application or RPM range for these bearings?
If your side load isnt insane (and you are trying to be frugal) you can stack regular "deep-groove" bearings. A deep grove is not specifically meant for side load but the are rated for some. In some cases it works really well to put in 2 or 3 (instead of 1 angular) $5 bearings and just replace when necessary.
Another option would be to design in a thrust bearing and radial bearing combo. This takes alot more physical space and machining but your bearings are still inexpensive ($5) and endplay is adjustable to zero (angular contacts can be difficult to build to zero endplay).
some food for thought - mud for mudpies
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