Common shafts can be divided into crankshafts, straight shafts, flexible shafts, solid shafts, hollow shafts, rigid shafts, and flexible shafts (flexible shafts) according to the structural shape of the shaft. Straight shafts can be divided into:
①Rotary shafts, which bear both bending moments and torques during operation, and are the most common shafts in machinery, such as shafts in various reducers.
②The mandrel is used to support the rotating parts to only bear the bending moment without transmitting the torque. Some mandrels rotate, such as the axle of the railway vehicle, and some mandrels do not rotate, such as the shaft supporting the pulley.
③The transmission shaft is mainly used to transmit torque without bearing bending moment, such as the long optical axis in the crane moving mechanism, the drive shaft of the car, etc. The material of the shaft is mainly carbon steel or alloy steel, but also ductile iron or alloy cast iron. The working capacity of the shaft generally depends on the strength and rigidity, and also depends on the vibration stability at high speeds.
Link to this article：Classification Of Stainless Steel Shafts
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