... , YNR, according to your needOrigin: ChinaOuter Dimension: Large (75-2000mm)Separation: YesThe Number of Rows: Single, Double, Multi-ColumnRolling Body: Roller ... Double Side SealCage Material: Brass, Steel, Ceramic, PTFE, Peek, NylonLubricate: Oil, Grease, Self-LubricateBearing Material: Steel, Ceramic, PlasticExport Markets: North America, South ...