... standards:China Bearing Standard: GB/T 307.3—1996, General rules for rolling bearing GB/T ... 307.3—1996 4: range of use: farm machine, ... ,UCFC213,UCFC214,UCFC215,UCFC216,UCFC217,UCFC218SBPF200series:SBPF201,SBPF201-8,SBPF202,SBPF202-9,SBPF202-10,SBPF203,SBPF203-11 ... shall try our best to satisfy your requirements.3-Material:cast iron,pressed steel ,chrom steel and ...