Dear CactusChip,
The Ideal Bearings for supporting Ballscrews are made by INA. The Type of bearings are ZKLF & ZKLR. These are Readymade assemblies with a pair of Angular Contact Bearings, put in a housing back to back.
This arrangement is space saving and faster to assemble.
Kindly check the following Link:
http://www.ina.com/inaupdate/news/pu...specken_gb.asp
Smabhyan