RNA49 ... RS RNA49 ... 2RS single-sided or double-sided seal seal NA69 .. RS NA69..2RS single seal or double sealed double RNAO outer wall single or double row without an inner ring NAO no outer Ribs single or double row with an inner ring outer double-wall single RNAV NAV without inner ring outer double-wall single row bearings with an inner ring of the bearing stiffness has certain requirements; or with a standard inner ring IR were inlayed, Hardness shaft is not required, the structure will be more compact. Needle roller bearings NKI80 / 25. According to the special structural requirements of the design. Needle roller bearings. , Due to changes in the size structure of the material changes. This shift by temperature, time and stress influence. Needle roller bearings, needle roller governance, needle roller bearings NKI85 / 26 by LINQing municipal and needle roller bearings plant. Needle roller bearings, needle roller governance, needle roller bearings NKI85 / 26 is Linqing municipal and needle roller bearings plant (www.zhgzzc.com) (www.zhgzzc.net) this year introduced a new upgrade, the above picture is for reference only, please You call Tel picture on this page or to obtain the latest information, contact: Mr.Song.