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Axis classification
- Nov 20, 2018 -

Common shafts can be classified into a crankshaft, a straight shaft, a soft shaft, a solid shaft, a hollow shaft, a rigid shaft, and a flexible shaft (flexible shaft) according to the structural shape of the shaft. The straight shaft can be further divided into: 1 rotating shaft, which is subjected to both bending moment and torque, and is the most common shaft in machinery, such as shafts in various speed reducers. 2 mandrel, used to support the rotating parts only to bear the bending moment without transmitting torque, some mandrel rotation, such as the axle of the railway vehicle, etc., some of the mandrel does not rotate, such as the shaft supporting the pulley. 3 drive shaft, mainly used to transmit torque without bending moments, such as the long optical axis in the crane moving mechanism, the drive shaft of the car, and so on. The material of the shaft is mainly carbon steel or alloy steel, and ductile iron or alloy cast iron can also be used. The working capacity of the shaft generally depends on the strength and stiffness, and the high speed also depends on the vibration stability.