| 摘要 |
<p>Embodiments of a combination bearing (52) are provided, as are embodiments of a valve assembly (10) including a combination bearing (52). In one embodiment, the valve assembly (10) includes a flowbody (14) having a flow passage (20) therethrough, a drive shaft (22) rotatably mounted within the flowbody (14), a valve element (24) mounted to the drive shaft (22) and positioned within the flow passage (20), and a combination bearing (52) coupled between the flowbody (14) and the drive shaft (22). The combination bearing (52) comprises an integral radial load/thrust ring (74) coupled to the drive shaft (22), and a thrust washer (76) substantially adjacent the integral radial load/thrust ring (74), as taken along the longitudinal axis of the combination bearing (52). An outer radial ring (78) circumscribes the integral thrust/radial load ring (74). A first plurality of rolling elements (80) is captured between the thrust washer (76) and the integral radial load/thrust ring (74), and a second plurality of rolling elements (82) is captured between the outer radial ring (78) and the integral radial load/thrust ring (74).</p> |
