What are the characteristics of hollow design of rotating shaft?

The hollow design features of the rotating shaft are as follows:

The structure of hollow structure rotating shaft is very simple and easy to produce. The factor that affects the torque is the interference between the male shaft and the female shaft, but the interference cannot be too large within a certain size range, otherwise the structure will be destroyed, so more accurate dimensional tolerance is needed to meet the required interference requirements.

The hollow shaft takes up a lot of space, but it can reduce the weight. According to the analysis of material mechanics, when the rotating shaft transmits torque, the effect of transmitting effective torque on the outside is greater from the radial section. When the rotating shaft needs to transmit a large torque, it needs a large shaft diameter. However, due to the small effect of transmitting torque at the axis, it is generally hollow to reduce the self-weight of the rotating shaft.

For the torque value of practical application and the convenience of assembly, the entity of the male shaft is disassembled into a hollow male shaft, so it is called a hollow structure. The strength of hollow structure also has a great influence on torsion. At present, the most important method to control the torque range is to design the interference and hollow strength of the male shaft to meet the appearance and size requirements of the female shaft.