Composite floating element thrust bearing

Details Composite floating element thrust bearing Composite floating element thrust bearing

E - Fixed Constructions

21

B

255/78

E21B 10/22 (2006.01)

Patent

CA 1195319

COMPOSITE FLOATING ELEMENT THRUST BEARING ABSTRACT OF THE DISCLOSURE A rolling cutter drill bit with at least one downwardly extending leg which supports a canti- levered bearing shaft thereon is disclosed. A cutter cone is rotatably mounted on the bearing shaft by radial bearing means and by axial bear- ing means. A radially disposed thrust washer is positioned between the journal and the cone, the washer further defining a lubricant transferring means in each radially disposed side of the thrust washer to assure adequate lubrication of the roller cone on the journal bearing.

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