1. Product Overview The AA59196 double‑row angular contact ball bearing, cross reference 5204PY3, is a specially customized heavy‑duty bearing for agricultural planting machinery opener units. Featuring a reinforced integrated sealing structure, it effectively resists dust, soil, debris and moisture intrusion in harsh outdoor farm working environments. With a double‑row rolling structure, it stably bears heavy combined radial and bidirectional axial loads, adapting to