| 摘要 |
<p>The invention relates to a brake drum, in particular for a motor vehicle, comprising a circular axial ring gear (10) including an inner braking surface (12) that is connected to a rotational hub, wherein said brake drum is characterized in that the axial ring gear (10) comprises, on the outer surface thereof, a thermal mass including a steel holding ring (20, 40) that is attached 10 onto said axial ring gear and makes use of coupling shapes (22) onto which a light alloy ring gear (30) is over-molded.</p> |
