Bearing inner race with sleeve and integrated puller
AssigneePratt & Whitney Canada Corp.
InventorsLorenzo Sanzari, Guy Lefebvre
Life of this patent
Estimating the term…
Abstract
A bearing assembly for a turbomachine includes a bearing inner race, a bearing outer race located radially outwardly from the bearing inner race, and one or more bearing elements located radially between the bearing inner race and the bearing outer race. A bearing sleeve is positioned radially inboard of the bearing inner race and is configured for engagement with a rotating component. The bearing sleeve includes a sleeve body located radially between the bearing inner race and the rotating component, and a puller feature extending from the sleeve body at a first axial end of the bearing sleeve. The puller feature is configured for application of a removal force thereto to remove the bearing from an installed position in the turbomachine.
Claims16
A bearing and shaft assembly of a turbomachine, comprising:
- a bearing inner race;
- a bearing outer race disposed radially outwardly from the bearing inner race;
- one or more bearing elements located radially between the bearing inner race and the bearing outer race;
- and
- a bearing sleeve disposed radially inboard of the bearing inner race and configured for engagement with a shaft supporting a rotor of the turbomachine, the bearing sleeve including:
- a sleeve body disposed radially between the bearing inner race and the rotor shaft;
- a puller feature extending from the sleeve body at a first axial end of the bearing sleeve, the puller feature configured for application of a removal force thereto to remove the bearing from an installed position in the turbomachine;
- and
- a locating protrusion extending from the sleeve body and engageable with the bearing inner race to axially locate the bearing sleeve relative to the bearing inner race, the locating protrusion positioned axially between the puller feature and the bearing inner race;
- wherein the locating protrusion axially abuts the bearing inner race so that a channel is defined by the puller feature, the bearing inner race, and the locating protrusion.
A gas turbine engine, comprising:
- one or more rotating shafts;
- one or more turbines operably connected to the one or more rotating shafts;
- one or more bearing assemblies, each bearing assembly supportive of a corresponding shaft of the one or more rotating shafts, a bearing assembly of the one or more bearing assemblies, including:
- a bearing inner race;
- a bearing outer race disposed radially outwardly from the bearing inner race;
- one or more bearing elements located radially between the bearing inner race and the bearing outer race;
- and
- a bearing sleeve disposed radially inboard of the bearing inner race and engaged with the corresponding shaft, the bearing sleeve including:
- a sleeve body disposed radially between the bearing inner race and the corresponding shaft;
- a puller feature extending from the sleeve body at a first axial end of the bearing sleeve, the puller feature configured for application of a removal force thereto to remove the bearing from an installed position in the turbomachine;
- and
- a locating protrusion extending from the sleeve body and engageable with the bearing inner race to axially locate the bearing sleeve relative to the bearing inner race, the locating protrusion positioned axially between the puller feature and the bearing inner race;
- wherein the locating protrusion axially abuts the bearing inner race so that a channel is defined by the puller feature, the bearing inner race, and the locating protrusion.
Dependencies are inferred from the claim text.