Roller type turntable bearing for super-tonnage crawler-type crane
A technology of crawler crane and slewing bearing, which is applied to cranes, roller bearings, etc., can solve the problems of increasing the production cost of bearings, increasing the processing cost, increasing the thickness of the bearing, etc. Effect
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[0010] The present invention will be described in conjunction with the embodiments and drawings:
[0011] Such as figure 1 , figure 2 As shown, the slewing bearing has six rows of cylindrical rollers and five rows of cylindrical rollers are arranged in upper and lower rows, the upper two rows are auxiliary thrust rollers, and the lower three rows are main thrust rollers; the slewing bearing The axial force and overturning moment are borne by the upper and lower five rows of rollers, so that under the same outer diameter and height, the bearing capacity is greatly improved; the other row of radial rollers can bear the slewing bearing Radial force; the six rows of rollers are located in the raceway formed by the inner ring and outer ring of the slewing bearing, and the outer ring is connected by the seat ring 1, the outer gear ring 2, and the second outer ring 10 by screws 12 Is constituted; that is, a row of axial rollers is provided between the inner raceway 24 of the inner ring...
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