... , RNA, NK seriesHF, FC SeriesHFL, FCB seriesK series, KZK, KBK seriesAXK series, AS, GS 811, WS811NATR, NATV, PP seriesNUTR ... . Model: LZ series, HK SERIES, BK SERIES, HK-RS SERIES, BK-RS SERIES, FFH SERIES, MFH SERIES, FY SERIES, MFY SERIES, HF SERIES, HFL SERIES etc2. Materials: ... Ball Bearing are mainly used for:roots blower,air compressor,various types of transmission,fuel injection pumps,printing ...