看了本刊1978年第4期于逢捷同志关于《圆盘耙轴承盖的磨损》一文后,认为轴承盖磨损还有另一个原因。那就是在检修轴承盖时,由于毡封太厚,旋紧螺栓后,有的同志把毡封同间管的间隙误当成轴瓦内部间隙。一经使用,毡封很快磨损,使下瓦盖同间管之间出现很大间隙,泥土从这儿进入轴瓦内部,堵住 After reading the article No. 4, 1978, Yu Fengjie on the “disc harrow bearing cap wear,” a text that the bearing cap wear there is another reason. That is overhauling the bearing cover, the felt is too thick, tighten the bolt, some comrades mistakenly felt the same space between the tube as a bearing pad internal clearance. Once used, felt quickly wear, so that there is a large gap between the bottom tile cover with the pipe, the soil from here into the bearing inside, blocking