几年来,在湖南、广西、福建、四川、云南和贵州等省、区对P_(23-1)塑料轴承进行了大面积、多机组及立、卧、串、并等多种安装形式的试验.在含砂量小于0.30%的情况下,平面推力轴承运行5000小时,磨损2毫米;径问导轴承运行2500小时,磨损1.25毫米,基本满足要求. 1977年对高产牌水轮泵改装塑料轴承进行了定型,统一了结构、工艺和材料.塑料件贵州、湖南、广西和浙江均能生产,金属配件各省自行解决. 这种塑料轴承具有成本低,寿命长,货源容易解决,维护保养方便等优点.它的缺点是脱水易烧.有关科研单位对该轴承压制工艺进行了改进,可使其脱 Over the past few years, P_ (23-1) plastic bearings have been tested in large scale, multi-unit, standing, lying, stringing and etc. in Hunan, Guangxi, Fujian, Sichuan, Yunnan and Guizhou provinces, . In the sand content of less than 0.30% of the case, the plane thrust bearings running 5000 hours, wear 2 mm; diameter guide bearings running 2500 hours, wear 1.25 mm, basically meet the requirements of 1977 high-brand water pump modified plastic bearings Has been stereotyped, unified structure, technology and materials.Plastic parts of Guizhou, Hunan, Guangxi and Zhejiang can produce, metal parts provinces to solve this plastic bearing with low cost, long life, easy to supply, easy maintenance and so on Advantages. The disadvantage is dehydration easy to burn. The relevant scientific research units of the bearing pressing process has been improved to make it off