... 1. 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: GCr15, ... are open to all sincere buyersroller bearingAs for the particularity of the non-standard bearing,this product series can not be ... list.You can send your demand or blueprint to us and our experts will design ...