| 摘要 |
Pipe machining apparatuses and bearing assemblies are provided. In one aspect, a pipe machining apparatus (20) includes a frame (28), a tool carrier (32), a first roller bearing (72A) and a second roller bearing (72B). The tool carrier (32) is coupled to and movable relative to the frame (28) and defines a race (76) therein. The first roller bearing includes a first shaft and a first roller rotatably coupled to the first shaft. The first roller is at least partially positioned in the race and is rotatable about a first roller bearing axis adapted to remain substantially fixed relative to the frame. The second roller bearing includes a second shaft and a second roller rotatably coupled to the second shaft. The second roller is at least partially positioned in the race and is rotatable about a second roller bearing axis. The second roller bearing is adjustable to move the second roller bearing axis relative to the frame. |
