| 摘要 |
<p>The gear has a torque transmission metal part (1) with a tooth (4) for transmitting torque, and a part (2) made up of a light material to fill the volume of the gear. The part (2) serves as a friction unit with a differential casing. The light material is honeycombed or porous in its inner part and is inserted by injection. Pins (3) prevent the relative rotation between the metal part and the part (2). An independent claim is also included for a transmission differential of a motor vehicle comprising an inner planet or side gear.</p> |
