| 摘要 |
<p>The bearing (1) has a central opening (4) for receiving a rotation axle of a drum. Rings (2, 3) are remote from each other and assembled in a concentric manner. The opening is located on one of the rings. The rings are connected by a set of arms (5) extending into a space between the rings. Each arm is formed by elastic element and arranged for permitting angular displacement during rotation of the drum to enlarge radius of another ring. The arms are made of carbon fiber, whose elasticity is higher than that of steel forming the rings. Recesses (6) are provided between successive arms.</p> |
