Invention Grant
US08967871B2 Bearing assemblies and apparatuses including tilting superhard bearing elements, and motor assemblies using the same 有权
包括倾斜超硬轴承元件的轴承组件和设备,以及使用其的电机组件

Bearing assemblies and apparatuses including tilting superhard bearing elements, and motor assemblies using the same
Abstract:
Embodiments relate to tilting superhard bearing element bearing assemblies and apparatuses. The disclosed assemblies/apparatuses may be employed in downhole motors of a subterranean drilling system or other mechanical systems. In an embodiment, a bearing assembly may include a support ring and a plurality of superhard bearing elements each of which is tilted and/or tiltably secured relative to the support ring and distributed circumferentially about an axis. Each of the superhard bearing elements includes a bearing surface and a base portion. The base portion of the at least one of the superhard bearing elements may include a tilting feature configured to allow the at least one of the superhard bearing elements to be tiltable about a tilt axis. The bearing assembly includes retaining features that secure the superhard bearing elements to the support ring.
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