The outer hinge consists of a body 1, a separator 2, an inner cage 6 and six balls 4. Grooves are made in the body of the hinge and in the cage to accommodate the balls. The grooves in the longitudinal plane are made along the radius, which provides an angle of rotation of the outer hinge up to 42°. The slotted tip of the hinge housing is installed in the front wheel hub and attached to it with a nut. The holder 6 of the hinge is mounted on the splines of the shaft 9 and is fixed with a retaining ring 3.
The inner hinge differs from the outer one in that the tracks of the body 11 and the clip are made straight and not radial, which allows the hinge parts to move in the longitudinal direction. This is necessary to compensate for movements caused by oscillations of the front suspension and power unit. The holder 6 of the hinge is installed on the splines of the shaft and is fixed with a retaining ring.
When assembling the inner hinge, a selective method is used. Balls of the same sorting group are installed in the outer and inner hinges. Replacement of any one part is not allowed - the hinges are replaced as an assembly.
Hinge parts are lubricated with SHRUS-4 grease, which is put into the hinge bodies and covers during assembly. The sealing of the hinges is provided by protective covers, which are fastened with clamps.
Possible malfunctions of the wheel drive, their causes and methods of elimination are given in Table. eleven.