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The layout features and effects of thrust bearings
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The thrust bearing is generally composed of two thrust washers or more thrust washers and a plurality of roll bodies. Generally, the thrust washers are divided into shaft pieces and seat pieces. The most common type of roll body is made of iron or copper. The mass holders are combined into one. The most common type of bearing is a steel ball thrust bearing.
The thrust ball bearing is a kind of separate bearing; the shaft ring and the seat ring can be separated from the cage and the steel ball assembly. The shaft ring is a ferrule matched with the shaft; the seat ring is a ferrule matched with the bearing seat hole; There is a gap between the shaft and the shaft, the thrust ball bearing can only accept the axial load; the one-way thrust ball bearing can only accept the axial load in one direction; the two-way thrust ball bearing can accept the axial load in both directions, the thrust ball bearing The radial displacement of the shaft cannot be constrained; the limit rotation speed is very low; the one-way thrust ball bearing can restrain the axial displacement of the shaft and the casing in one direction; the two-way bearing can restrain the axial displacement in two directions.
Thrust roller bearings are used to accept axial and radial combined loads with axial loads; however, radial loads must not exceed 55% of axial loads. Compared with other thrust roller bearings; such bearings have lower collision factors; Higher; and has a self-aligning function. The stick of the 29000 type bearing is an asymmetrical spherical roller; it can reduce the relative sliding of the roller and the raceway during operation; and the roller is long and has a large diameter; the number of rollers is large; High load capacity; generally oil smooth; single low speed condition can be smooth grease. When drawing and selecting; preferred, 80000 thrust cylindrical roller bearing, 90000 thrust tapered roller bearing and AXK thrust needle roller bearing; Accepts one-way axial load; it is much larger than the axial load of the thrust ball bearing; and it has high rigidity and small axial space. Thrust cylindrical roller bearings and thrust needle roller bearings are suitable for low speed applications; Tapered roller bearing speed is slightly higher than thrust cylindrical roller bearings.
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