tapered roller thrust bearings are the component used for transferring axial thrust form a rotating component to.
tapered roller thrust bearings are the component used for transferring axial thrust form a rotating component to.
the component used for transferring axial thrust form a rotating component to?
tapered roller thrust bearings
bullet::::- "tapered roller thrust bearings" consist of small tapered rollers arranged so that their axes all converge at a point on the axis of the bearing. the length of the roller and the diameter of the wide and the narrow ends and the angle of rollers need to be carefully calculated to provide the correct taper so that each end of the roller rolls smoothly on the bearing face without skidding. these are the type most commonly used in automotive applications (to support the wheels of a motor car for example), where they are used in pairs to accommodate axial thrust in either direction, as well as radial loads. they can support greater thrust loads than the ball type due to the larger contact area, but are more expensive to manufacture.
thrust bearing
the moving steam imparts both a tangential and axial thrust on the turbine shaft, but the axial thrust in a simple turbine is unopposed. to maintain the correct rotor position and balancing, this force must be counteracted by an opposing force. thrust bearings can be used for the shaft bearings, the rotor can use dummy pistons, it can be double flow- the steam enters in the middle of the shaft and exits at both ends, or a combination of any of these. in a double flow rotor, the blades in each half face opposite ways, so that the axial forces negate each other but the tangential forces act together. this design of rotor is also called two-flow, double-axial-flow, or double-exhaust. this arrangement is common in low-pressure casings of a compound turbine.
steam turbine