FIELD: oil and gas production.
SUBSTANCE: invention relates to the field and is used in electric submersible equipment, in particular in the thrust bearing assembly, as well as in the pump assembly containing such a bearing assembly. Thrust bearing assembly includes upper thrust bearing, upper roller thrust bearing ring, in contact with upper thrust bearing, lower roller thrust bearing ring, lower thrust bearing in contact with assembly lower support and roller, located between the upper roller thrust bearing ring and the lower roller thrust bearing ring, wherein at least the roller is configured to rotate, relative to lower support bearing about longitudinal axis.
EFFECT: improving reliability due to effective retention and distribution of axial load at operation of device, especially, electric submersible pump with moving cavities.
4 cl, 7 dwg
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