公开(公告)号：US11692482B2

公开(公告)日：2023-07-04

申请号：US17812563

申请日：2022-07-14

Applicant: ROLLS-ROYCE plc

Inventor： Robert W Hicks

IPC: F02C7/06 ,  F02C7/36 ,  F01D21/04

CPC classification number: F02C7/06 ,  F01D21/045 ,  F02C7/36 ,  F05D2220/323 ,  F05D2220/36 ,  F05D2240/54 ,  F05D2260/37 ,  F05D2260/98

Abstract: A roller bearing arrangement for a gas turbine engine. The roller bearing arrangement includes a fan shaft, and a stub shaft connected to the fan shaft. The roller bearing arrangement further includes a plurality of roller bearing elements positioned between a first axial bearing surface created on a radially outer surface of the stub shaft and a second axial bearing surface of a static structure, the roller bearing arrangement further including a first snubber positioned between the radially outer surface of the fan shaft and a radially inner surface of the stub shaft, the first snubber being spaced apart from the radially inner surface of the stub shaft or the radially outer surface of the fan shaft so as to limit a radial movement range of the stub shaft.