... lubrictionFairGoodExcellentDustproofFairGoodExcellentWaterproofPoorFairgood SeriesBore Diameter(mm)Variant Structure600010~260Z,2Z,RZ,2RZ,RS1,2RS1,N,RN,ZN,RZN6000240~1000Z,2Z,RZ,2RZ ... ,N,RN,ZN,RZN630010~190Z,2Z,RZ,2RZ,RS1,2RS1,N,RN,ZN,RZN6300200~1200Z,2Z,RZ,2RZ,RS, ... ,RZN640010~100N,NR6400110~1200N,NR1600010~26016000280~1000Z,2Z,RZ,2RZ,RS1,2RS1,N,RN,ZN,RZN6180010~320Z,2Z,RZ,2RZ61800340~1200Z ...