It was very easy to find the needed part on the website. It was packaged well and arrived quickly. Perfect!
Bearing - 1 3/16" ball - for: as/ad/sas/
Bearing - 1 3/16" ball - for: as/ad/sas/sad150b, as/ad/au200b, ca30/36000d (essick) & cd21/30/36000 (essick)
Buy this part and as many parts as you like and pay only $9.99 shipping, within the Contiguous United States.