Patent ID: 9746027
Date: 2017-08-29
CPC Classifications: F16C

Claim:
1. An assembly comprising: a rotating shaft supported within a stationary housing by at least one active magnetic bearing associated with an air gap and at least one auxiliary bearing having first and second coaxially arranged annular surfaces, wherein one of the first and second coaxially arranged annular surfaces defines a clearance with one of the stationary housing and the rotating shaft, wherein the clearance is less than the air gap associated with the at least one active magnetic bearing, wherein the other of the first and second coaxially arranged annular surfaces are integral with the other one of the stationary housing and the rotating shaft, and wherein the at least one auxiliary bearing includes a first ball bearing and a second ball bearing having a misalignment with respect to each other to provide an offset between an axis of the first ball bearing and an axis of the second ball bearing, wherein the misalignment comprises a radial misalignment and an angular misalignment, wherein the angular misalignment comprises a geometrical offset between bearing housing seats of the first and second ball bearings created by a rotor angularly offset by first and second rotor members.