Pitch change linkage
AssigneeTextron Innovations Inc.
InventorsGerard Michael Schneider, Lawrence Michael Petsch
Life of this patent
Estimating the term…
Abstract
A pitch change link may include a shaft having a first end region and a second end region, and a bearing cartridge on at least one of the first end region and the second end region. The bearing cartridge may include a bearing and a bearing ring at least partially surrounding the bearing. The bearing ring may have a geometric symmetry and a cross section that is wider at a first end than at a second end, the first end may oppose the second end.
Claims20
A pitch change link comprising:
- a shaft having a first end region and a second end region;
- and
- a bearing cartridge on at least one of the first end region and the second end region, the bearing cartridge having:
- a bearing;
- and
- a bearing ring at least partially surrounding the bearing, the bearing ring having geometric symmetry and having a cross section that is wider at a first end than at a second end, the first end region opposing the second end region;
- and
- wherein the bearing comprises bearing ring threads on an exterior surface thereof.
A bearing cartridge comprising:
- a bearing;
- and
- a bearing ring at least partially surrounding the bearing, the bearing ring having a geometric symmetry and having a cross section that is wider at a first end than at a second end, the first end opposing the second end,
- wherein the bearing comprises bearing ring threads on an exterior surface thereof.
A method of increasing life of a bearing cartridge for a pitch change link comprising:
- manufacturing a pitch change link having the bearing cartridge, the bearing cartridge having:
- a bearing;
- and
- a bearing ring at least partially surrounding the bearing, the bearing ring having geometric symmetry and having a cross section that is wider at a first end than at a second end, the first end opposing the second end;
- unlocking the bearing cartridge from the pitch change link;
- rotating the bearing cartridge relative to the pitch change link;
- and locking the rotated bearing cartridge to the pitch change link.
Dependencies are inferred from the claim text.