SF-21 边界润滑无铅轴承 Pb-Free prelubricated bearing

应用特点：SF-21是在SF-20的基础上改进而成。其性能与SF-20相同，但使用领域可扩展至无铅领域。Application characteristics: Non-lead boundary lubrication bushing is improved on the basis of SF-20.Therefore, it almost has the same properties with SF-20. but its application can be extended to where non-lead is required. 可供标准产品：直套P15、P18，止推垫片P17、P19，板材P17。 Provide standardized products: Cylindrical bu

SF-22 自润滑轴承 Self-lubricating bearing

应用特点：以钢背为基体，中间烧结球形锡青铜粉，表面轧制以缩醛树脂并含有亲油性纤维和特殊润滑剂的聚合物材料。国外的相同产品为DS轴承，应常温条件下工作的干摩擦和少润滑场合，具有摩擦系数低，耐磨性能好，无油条件润滑的优点。目前产品已应用在摇摆运动，易磨损，易腐蚀的场合，如卷扬机、推土机、印染机、采煤机及吊车，行车高空作业机等场合。Application characteristics: SF-22 is similar to foreign made DS bush, and may be operated without lubricant or under a trace of oil. It is of low friction, anticorrosion and is of long life. This is now applied in machines under oscillating motion and in open field or in corrosive environment such as hoisters, bulldogger, tower cranes, and printing or dyeing machines for textiles. 可供标准产品：直套P15、P18，止推垫片P17、P19，板材P17。 Provide standardized products: Cylindrical bushes P15、P18, thrust washers P17、P19,flat strip material P17. 可供非标产品：直套，止推垫片，板材，轴瓦，滑板，钢套组合件。 Provide non-standardized products: Cylindrical bushes, thrust washers, flat strip material, half bearing, wear plate, SF-22 with steel bush.

SF-23 边界润滑轴承 Prelubricated bearing

应用特点：是在SF-20基础上改进而成，性能与SF-20似。Application characteristics: It is improved form SF-20 products, it almost has the same prop 可供标准产品：直套P15、P18，止推垫片P17、P19，板材P17。 Provide standardized products: Cylindrical bushes P15、P18，thrust washers P17、P19，flat strip material P17. 可供非标产品：直套，止推垫片，板材，轴瓦，滑板，钢套组合件。 Provide non-standardized products: Cylindrical bushes, thrust washers, flat strip material, half bearing, wear plate, SF-23 with steel bush.