| 摘要 |
<p>The unit (10) is assembled of an outer rotating (30) and an inner stationary ring (20) and a dual roller bearing between them. The inner ring (20) has a cylindrical extension (21) with a flanged border (21a) guided into a space (36) at the outer ring (30). The central inner space (27) is connected to a space (36) formed by the outer ring (30). Pressurized air is guided through a small pipe (50) into the inner spaces (27, 36) and from there into the tire if required. A ring seal (60) prevents the air from entering the bearing unit (24, 25, 26, 40, 41).</p> |
