1. Product Overview 30BD219DDULXCG double row angular contact ball bearing, standard metric dimension 30×47×18mm, interchangeable with 30BD219-T12DDWAXCG.Code Definition 30BD219: Double row auto air conditioning bearing base model DDU: Double sides contact rubber lip seal for dust, water and refrigerant isolation LXCG: Special internal clearance and high temperature grease configuration Back-to-back double ball row structure bears radial load and bidirectional axial load