1. Product Overview UEV 204 2S vertical base insert bearing adopts integrated vertical housing structure, double-sided 2S rubber contact seals, integrated set screw locking, interchangeable with standard UEV204 models. Double rubber seal structure effectively blocks dust, mud, water splash and crop residues. Spherical outer ring realizes self-alignment to compensate shaft installation error. Pre-filled long-life high temperature grease with grease nipple for regular re