Do you understand what a half-shaft sleeve is?

Half-shaft bushings are an important part of automotive transaxle assemblies. It is combined with the drive axle housing to fix the axial relative position of the left and right drive wheels, supporting the mass of the frame and its assembly. At the same time, it withstands the road reaction forces and torques transmitted by the wheels and is transmitted to the frame via the suspension.

Assembly of the half-shaft sleeve in the integral bridge housing

The strength and stiffness of the overall bridge shell are relatively large, and the main reducer is adjusted and maintained, which is widely used in various automobiles.

In the middle of the overall bridge shell is a circular hollow beam cast of ductile iron. Press into the steel half-shaft sleeve at both ends and limit the position with a stop screw; The outer end of the half-shaft sleeve is mounted with hub bearings and the flange disc holds the brake base plate.

Due to different manufacturing methods, the overall bridge shell comes in many forms. Common forms include integral casting, intermediate casting at both ends of the pressed steel pipe, steel plate stamping welding, steel pipe expansion molding and other forms. The integral cast bridge shell is a half-shaft sleeve made of seamless steel tubes to increase strength and stiffness. The half-shaft sleeve is pressed into the rear axle housing. There are ventilation plugs on the bridge shell to ensure high temperature ventilation and maintain the quality of lubricating oil and the service life. The overall casting bridge shell has large stiffness, high strength, easy casting and other strength beam shapes; However, due to the large quality, the casting quality is not easy to guarantee, suitable for medium and heavy vehicles, mostly used in heavy vehicles.

The steel pipe bridge shell is light in weight, the process is simple, the deformation is convenient, but the stiffness is poor, which is suitable for mass production.

The steel plate stamping welding bridge shell has the advantages of small quality, simple manufacturing process, high material utilization, good impact resistance and low cost, and is suitable for large-scale production. Its half-shaft sleeve is welded together with the main part of the bridge shell,