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US 2009/0154865 A1Published application
Revolving joint
AssigneeSchaeffler KG
InventorsFrank Neubert, Franz-Josef Ebert, Jurgen Klutsch, Gerold Strum
Life of this patent
Estimating the term…
Abstract
A revolving joint comprising at least one anti-friction bearing and an electromotive drive unit. The anti-friction bearing is in contact with at least one row of rolling bodies arranged in a row rotating the joint around the rotational axis of the anti-friction bearing. The rolling bodies are in contact with at least one race that can be driven to rotate by the drive unit.
Claims19
A revolving joint comprising:
- at least one rolling contact bearing and an electromotive drive unit;
- the rolling contact bearing includes at least one row of rolling bodies arranged around a rotational axis of the joint, at least one running track driven by the drive unit and the rolling bodies are in contact with the at least one track;
- the joint is configured and operable so that it generates a measurable running noise at the electromotively driven revolving joint, the noise being measured as air-borne sound, and has sound pressure levels with values of at most 72 dB(A).
Dependencies are inferred from the claim text.