The drive shaft is composed of a shaft tube, a telescopic sleeve and a universal joint. Telescopic sleeve can automatically adjust the transmission and changes the distance between driving bridge. Universal joint is a guaranteed transmission converter output shaft and the input shaft driving bridge two axis angle, and realize the constant velocity transmission axes.

The drive shaft (DriveShaft) fitting circular object connection or the parts assembly and can move or rotate, generally used light alloy steel pipe torsional good made. Speaking of front engine rear drive car is to rotate to the main reducer shaft of the transmission, which can be several section is composed of a universal joint.

The drive shaft is a rotating body of a high speed and less support, so its dynamic balance is crucial. The general transmission shaft in the factory have to dynamic balance test, and proposes some adjustment on the balancing machine.