Double row angular contact ball bearings are units with solid inner
and outer rings and ball and cage assemblies with polyamide, sheet
steel or brass cages. They correspond in design to single row
angular contact ball bearings in pairs in an O arrangement but give
a narrower design than these. They differ in the size of their
contact angle and the design of the bearing rings.The bearings are
available in open and sealed versions. Due to the production
technology used, open bearings can still have turned recesses on
the outer ring for seals or shields. Sealed bearings are
maintenance-free and, as a result, allow particularly economical
bearing arrangements. The self-alignment capacity of angular
contact ball bearings is very small.