Patent ID: 8562478

Claim:
A differential for motor vehicles, the differential comprising: a tubular differential housing comprising a drive gear for transmission of engine drive torque; a follower spindle integral with the housing; differential bevel gears mounted on follower spindle, the differential bevel gears meshing with axle-shaft bevel gears, two diametrically opposite axle-shaft bores in the housing for passage of axle drive shafts; two diametrically opposite spindle bores in the housing for receiving the follower spindle; and reliefs provided at both ends of the housing, the reliefs being cutouts of the differential housing close to the axle-shafts bores and the spindle bores; wherein recesses are provided in the drive gear, the recesses being filled with a plastic, a plastic comprising a filler, or a fiber-reinforced composite material to form a stiffening matrix.