1. Product Overview 7030ACM is standard single row open-type angular contact ball bearing. AC : 25° contact angle, balanced radial and axial load capacity M : Machined solid brass cage, stable guiding under heavy load and continuous rotation Open structure supports grease or circulating oil lubrication. Single bearing withstands combined radial load and one-way axial load. It can be combined as DB back-to-back, DF face-to-face or DT tandem matched sets to bear bidirectional