BA2B‑633313‑C Double Row Wheel Hub Bearing 30x60x37mm for Agricultural Mower Product Overview BA2B‑633313‑C is pre‑assembled double‑row angular contact wheel hub bearing unit. It takes combined radial and axial loads for agricultural machinery wheel and disc mower assemblies. Fitted with double‑sided contact seals, factory pre‑greased for dust‑proof and maintenance‑free running. Internal clearance is preset at factory, no need for shim adjustment during field installation.