螺杆衬套采用滑动轴承的材料，应考虑良好的运行性能、足够的故障运行性能、快速磨合能力、耐磨性、承压能力和耐腐蚀性等。按输送的介质和使用场合的重要性，通常可分别采用铸铁、球墨铸铁、锡青铜ZCuSn5Pb5zN5、ZCuSn10P1、铝青铜ZCuAl10Fe3、铝硅合金ZAlSi12Cu9Mg1Ni1等。为了提高泵的寿命和效率，国内已经试验成功采用陶瓷渗金属的螺杆衬套；国外已经成功采用了涂层螺杆衬套。涂层采用聚
四氟乙烯，用石墨作填充材料，厚度仅为0.2mm，能牢固地粘附于各种基体材料上。它不仅有良好的滑动性能，还有极高的耐磨和耐蚀性能。
HSA螺杆泵型号三：
HSA20R38U4PY HSAF20R38U4PY HSAD20R38U4PY HSAFK20R38U4PY HSAS20R38U4PY
HSA20R46U4PY HSAF20R46U4PY HSAD20R46U4PY HSAFK20R46U4PY HSAS20R46U4PY
HSA40R38U4PY HSAF40R38U4PY HSAD40R38U4PY HSAFK40R38U4PY HSAS40R38U4PY
HSA40R46U4PY HSAF40R46U4PY HSAD40R46U4PY HSAFK40R46U4PY HSAS40R46U4PY
HSA80R36U4PY HSAF80R36U4PY HSAD80R36U4PY HSAFK80R36U4PY HSAS80R36U4PY
HSA80R46U4PY HSAF80R46U4PY HSAD80R46U4PY HSAFK80R46U4PY HSAS80R46U4PY
HSA120R42U4PY HSAF120R42U4PY HSAD120R42U4PY HSAFK120R42U4PY HSAS120R42U4PY
HSA120R46U4PY HSAF120R46U4PY HSAD120R46U4PY HSAFK120R46U4PY HSAS120R46U4PY
HSA210R36U4PY HSAF210R36U4PY HSAD210R36U4PY HSAFK210R36U4PY HSAS210R36U4PY
HSA210R40U4PY HSAF210R40U4PY HSAD210R40U4PY HSAFK210R40U4PY HSAS210R40U4PY
HSA210R46U4PY HSAF210R46U4PY HSAD210R46U4PY HSAFK210R46U4PY HSAS210R46U4PY
HSA280R43U4PY HSAF280R43U4PY HSAD280R43U4PY HSAFK280R43U4PY HSAS280R43U4PY
HSA280R46U4PY HSAF280R46U4PY HSAD280R46U4PY HSAFK280R46U4PY HSAS280R46U4PY
HSA440R36U4PY HSAF440R36U4PY HSAD440R36U4PY HSAFK440R36U4PY HSAS440R36U4PY
HSA440R40U4PY HSAF440R40U4PY HSAD440R40U4PY HSAFK440R40U4PY HSAS440R40U4PY
HSA440R46U4PY HSAF440R46U4PY HSAD440R46U4PY HSAFK440R46U4PY HSAS440R46U4PY
HSA660R40U4PY HSAF660R40U4PY HSAD660R40U4PY HSAFK660R40U4PY HSAS660R40U4PY
HSA660R44U4PY HSAF660R44U4PY HSAD660R44U4PY HSAFK660R44U4PY HSAS660R44U4PY
