Bearings, bearing apparatus, and systems including the same

摘要

A bearing ring for use in bearing apparatuses is disclosed. Such a bearing ring may comprise a body having a first array and a second array of bearing elements mounted to the body. The body may have an annular shape and the first array and the second array may be a concentric elliptical shapes, including circles. The body may comprise a plurality of bearing element pockets into which the bearing elements are disposed. In one aspect of the instant disclosure, the material of the bearing elements comprises polycrystalline diamond. A bearing apparatus comprising a first bearing ring and a second bearing ring is also disclosed. A drilling system for use in drilling subterranean formations employing the bearing apparatus is also disclosed.

主权项

1. A bearing apparatus comprising:
a first bearing ring comprising:
a body;a first plurality of bearing elements mounted to the body along a first radius;a second plurality of bearing elements mounted to the body along a second radius, each of the second plurality of bearing elements being larger than each of the first plurality of bearing elements, wherein a quantity of the second plurality of bearing elements is different than a quantity of the first plurality of bearing elements; a second bearing ring comprising:
a body;a first plurality of bearing elements mounted to the body along a first radius;a second plurality of bearing elements mounted to the body along a second radius; wherein the first bearing ring and the second bearing ring are positioned adjacent each other such that the first plurality of bearing elements of the first bearing ring are aligned with the first plurality of bearing elements of the second bearing ring and the second plurality of bearing elements of the first bearing ring are aligned with the second plurality of bearing elements of the second bearing ring.