At last, the water pump guide bearings were comprehensively compared from materials, installation, inspection, lubrication, seal, and etc. The selection principles of water pump guide bearings and seal devices were put forward.

• 最后,从材料、安装、检修、润滑、密封等方面对水泵导轴承进行综合比较,提出了水泵导轴承及其密封装置的选用原则。