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Thrust roller bearing
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Thrust roller bearing for bearing axial load mainly shaft, radial combined load, but the radial load shall not exceed 55% of the axial load. Compared with other thrust roller bearing, these bearing have a lower friction factor, a higher speed and a spherical adjustment performance. The rollers of the bearing are asymmetric spherical rollers, which can reduce the relative sliding of the rolAlers and raceways in the work, and the rollers are long and large in diameter, with a large number of rollers and a high load capacity, usually using oil lubrication, and individual low speed cases can be grease lubrication. In the design selection, should give priority to Thrust cylindrical roller bearing and thrust tapered roller bearing are suitable for low speed occasions, thrust tapered roller bearing speed is slightly higher than thrust cylindrical roller bearing. Thrust cylindrical roller bearing is a separation type bearing, can only bear one-way axial load and slight impact, can limit the shaft (or shell) a direction of axial displacement, so can be used as a one-way axial positioning. But its bearing capacity is much larger than the thrust ball bearing. Roller rolling, due to the roller two ends of the line speed is different, so that the roller in the ring raceway inevitably produce sliding, therefore, the limit speed of such bearing than thrust ball bearing low, usually only for low-speed operation occasions. The standard design of thrust cylindrical roller bearing using the car system metal solid cage, according to user requirements, can also use other types or materials cage. Thrust tapered roller bearing can only bear one-way axial load, can limit the bearing one-way axial displacement, so can be used as a one-way axial positioning. Compared with the thrust cylindrical roller bearing, bearing capacity, relative sliding small, but the limit speed is low. |