Mechanical roller bearing
AssigneeSafran Aircraft Engines
InventorsLaurent Schweitzer, Mathias Gautier
Life of this patent
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Abstract
A mechanical roller bearing comprising two bearing races each having a rolling track, rolling elements arranged between the races, the rolling elements being able to roll against a portion of the rolling tracks, the rolling elements being made of a defined material, wherein it includes a plurality of intermediate blocks arranged between the races, the intermediate blocks being made of a material having a greater stiffness than the stiffness of the material of the rolling elements in directions normal to the rolling tracks, and, when the bearing is subjected to loading below a threshold load, the intermediate blocks have a smaller dimension than the rolling elements in directions normal to the rolling tracks, the races having a greater stiffness than the rolling elements.
Claims19
A mechanical roller bearing, comprising:
- two bearing races each having a rolling track;
- rolling elements arranged between the races, the rolling elements being configured to roll against a portion of the rolling tracks, the rolling elements being made of a defined material;
- and
- a plurality of intermediate blocks arranged between the races, the intermediate blocks being made of a material having a greater stiffness than the stiffness of the material of the rolling elements at least in directions normal to the rolling tracks,
- when the bearing is subjected to loading below a threshold load, the intermediate blocks have a smaller dimension than the rolling elements in directions normal to the rolling tracks,
- wherein the races have a greater stiffness than the rolling elements, and wherein the intermediate blocks and the races are made of ceramic and the rolling elements are made of steel.
A mechanical roller bearing, comprising:
- two bearing races each having a rolling track;
- rolling elements arranged between the races, the rolling elements being configured to roll against a portion of the rolling tracks, the rolling elements being made of a defined material;
- and
- a plurality of intermediate blocks arranged between the races, the intermediate blocks being made of a material having a greater stiffness than the stiffness of the material of the rolling elements at least in directions normal to the rolling tracks,
- wherein, when the bearing is subjected to loading below a threshold load, the intermediate blocks have a smaller dimension than the rolling elements in directions normal to the rolling tracks,
- wherein the races have a greater stiffness than the rolling elements and wherein the rolling elements have a spherical shape, and
- wherein the shape of the intermediate blocks in cross-section is a diamond in which the obtuse angles are rounded with two opposite vertices of rounded shape, the cross-section being along a radial plane.
A mechanical roller bearing, comprising:
- two bearing races each having a rolling track;
- rolling elements arranged between the races, the rolling elements being configured to roll against a portion of the rolling tracks, the rolling elements being made of a defined material;
- and
- a plurality of intermediate blocks arranged between the races, the intermediate blocks being made of a material having a greater stiffness than the stiffness of the material of the rolling elements at least in directions normal to the rolling tracks,
- wherein, when the bearing is subjected to loading below a threshold load, the intermediate blocks have a smaller dimension than the rolling elements in directions normal to the rolling tracks,
- wherein the races have a greater stiffness than the rolling elements and wherein the rolling elements have the shape of a tapered roller, and
- wherein the intermediate blocks comprise supporting faces located facing the rolling tracks, the supporting faces of the intermediate blocks having a frustoconical shape.
Dependencies are inferred from the claim text.