Bearings of the 2RS design have an integral double lip rubbing seal (fig 10), of polyester elastomer or polyurethane (bearings of series GEZ.

• 2RS设计的轴承在两侧装有内部双唇环摩擦密封件(图10),密封件采用聚酯弹性体或聚氨基甲酸乙脂制造(GEZ。