Air bearing shaft assembly with surface layer
AssigneeHamilton Sundstrand Corporation
InventorsSteven Poteet, Blair A. Smith, Kevin M. Rankin, William R. Fiske
Life of this patent
Estimating the term…
Abstract
An example embodiment of an air bearing assembly includes a first member and a shaft with a flange configured to rotate with respect to the first member. The first member has a first coating on at least one first surface facing at least one second surface on the flange or the shaft. The first coating includes tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof. At least one of the second surfaces has a second coating on a surface facing the first coating.
Claims20
An air bearing assembly, comprising:
- a journal;
- and
- a shaft configured to rotate with respect to the journal;
- a flange connected to and extending from an end of the shaft;
- wherein the journal has a first coating disposed on a first surface facing a second surface on the shaft, the first coating comprising tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof;
- and
- wherein the second surface has a second coating disposed on a surface that faces the first coating, the second coating comprising tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof.
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A method of making an air bearing assembly, the method comprising:
- providing a journal and a shaft with a flange configured to rotate with respect to the journal;
- applying a first coating to a first surface of the journal, wherein the first surface of the journal faces the shaft, wherein the first coating comprises tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof;
- applying a second coating to a second surface of the shaft, wherein the second surface faces the first surface;
- and
- assembling the journal to the shaft to form the air bearing assembly.
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Dependencies are inferred from the claim text.