发明授权

Downhole motor
摘要:
A downhole motor having a motor section, a drive shaft section, and an output shaft section. The output shaft section has a rotatable output shaft with a first end and a second end. A first thrust bearing assembly proximal to the first end of the output shaft, a second thrust bearing assembly proximal to second end to said output shaft. A radial bearing assembly disposed between the first and second thrust bearing assemblies.
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