BTMA oil press

In the actual design process, many axial positioning and fixing of shafts and other parts are encountered, so how to design their positioning and fixing? 1. Shaft shoulder and collar positioning and fixing Features and applications: Simple and reliable structure, able to bear large axial force. Generally, a=0.07d+(1~2)mm, b≥1.4a, r<c, r<R, a>c. The a value of the shaft shoulder where the rolling bearing is installed is determined by the installation requirements of the rolling bearing. 2. Round nut positioning and fixing Features and applications: Reliable fixation, able to bear large axial force. Anti-loosening measures are required, such as double nuts and stop washers as shown in the figure. For the structural dimensions of round nuts and stop washers, see GB/T810, GB/T812 and GB/T858. The structure is more complicated. When the thread is on the load-bearing shaft section, it will weaken the fatigue strength of the shaft. 3. Conical surface positioning and fixing Features ...