Rolling element assembly with bearings elements
AssigneeHalliburton Energy Services, Inc.
InventorsXianwu Ling, Gregory Christopher Grosz, Brandon James Hinz
Life of this patent
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Abstract
A drill bit includes a bit body including one or more blades extending therefrom and a plurality of cutters secured to the one or more blades. A rolling element assembly is positioned within a cavity defined on the bit body and includes a housing, a rolling element rotatable within the housing about a rotational axis, and one or more bearing elements extendable into a corresponding one or more arcuate grooves defined in the cavity to secure the housing within the cavity. The housing encircles more than 180° but less than 360° of a circumference of the rolling element while leaving a full axial width of the rolling element exposed.
Claims20
A drill bit, comprising:
- a bit body including one or more blades extending therefrom;
- a plurality of cutters secured to the one or more blades;
- and
- a rolling element assembly positioned within a cavity defined on the bit body, the rolling element assembly including a housing, a rolling element rotatable within the housing about a rotational axis, and one or more bearing elements extendable into a corresponding one or more arcuate grooves defined in the cavity to secure the housing within the cavity,
- wherein the housing encircles more than 180° but less than 360° of a circumference of the rolling element while leaving a full axial width of the rolling element exposed.
A rolling element assembly, comprising:
- a housing receivable within a cavity defined in a bit body of a drill bit, the housing providing an opening defined in a top surface of the housing;
- a rolling element rotatable about a rotational axis and having an arcuate portion extend out of the opening when positioned within the housing, wherein the housing encircles more than 180° but less than 360° of a circumference of the rolling element while leaving a full axial width of the rolling element exposed;
- and
- one or more bearing elements positionable within the housing to support the rolling element and extendable into a corresponding one or more arcuate grooves defined in the cavity.
Dependencies are inferred from the claim text.