Screw pump bearing bracket

The invention relates to a bearing bracket and in particular relates to a screw pump bearing bracket with a better vibration reduction denoising effect. The screw pump bearing bracket comprises a bracket shell, a bearing mounting seat, a thrust bearing and a radial bearing, wherein through holes are arranged at the two ends of the bracket shell, and a mechanical seal is arranged on one through hole; the thrust bearing and the radial bearing are arranged in the bearing mounting seat; and the bracket shell is connected with a speed reducer through a connection flange. When transferred to a transmission shaft, the axial force and radial force of the unit are balanced through the thrust bearing and the radial bearing respectively and transferred to the bracket shell and the seat bottom so that the operation of the speed reducer is not influenced by the axial force and the radial force and the operation stability is guaranteed. The screw pump bearing bracket provided by the invention can be widely applied to vario