Cylindrical roller bearings ZSL series is semi-locating single row, with plastic roller roller separators,reduced friction, increased s Luoyang Best Precision Machinery Manufacture Co., Ltd mainly produce, types include ZSL192320,ZSL192322,ZSL192324,ZSL192319,ZSL192318,ZSL192317,ZSL192316,ZSL192315,ZSL192314,ZSL192313,ZSL192312,ZSL192344,ZSL192311,ZSL192310,ZSL192309,ZSL192308 Pls contact us.