We definitely have the parts you need for your AL-KO-7230 hub/drums. For the 4 inner bearing seals, those are the Grease Seal - Double Lip - ID 1.719" / OD 2.565" - for 3,500-lb Axles # 58846. As far as the inner bearing, you need the Replacement Trailer Hub Bearing - L68149 # L68149. The outer bearing you need is the Replacement Trailer Hub Bearing - L44649 # L44649. view full answer...