Short stack bearing assembly

Details Short stack bearing assembly Short stack bearing assembly

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 19/02 (2006.01) E21B 4/00 (2006.01) E21B 4/02 (2006.01) F16C 19/16 (2006.01) F16C 35/06 (2006.01)

Patent

CA 2061216

74489-9 SHORT STACK BEARING ASSEMBLY ABSTRACT OF THE INVENTION A mud motor bearing assembly is disclosed for an oil- lubricated downhole drill mud motor A number of parallel sets of angular contact ball bearings are located between the mandrel and the bearing housing in a sealed, oil-filled chamber to provide all compressive thrust load bearing, extension thrust load bearing and radial load bearing capacity. Oil filled pistons at each end retard the progress of mud contamination into the inside of the chamber containing the ball bearings.

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