Title:
【発明の名称】一体の変成器を有する軸受
Document Type and Number:
Japanese Patent JP2002527704
Kind Code:
A
Abstract:
A bearing is provided including a first part provided with a first coil (4) and a second part rotatable with respect to the first part about a bearing axis and being provided with a second coil which is electromagnetically coupled to the first coil. The first and second coil are magnetically enclosed by a first covering and a second covering, respectively. The first covering is fixed to the first part and the second covering is fixed to the second part. An air gap is formed between facing ends of the first and second coverings, with at least one of the facing ends of the first and second coverings being provided with at least one recession, such that the air gap varies when the first part and second part rotate with respect to each other. This may be used to provide an indication of speed (bearing rotation) without further sensors. Next to contactless transmission of power or data signals, the coupling between the first and second coil vary to provide a signal representative of the relative rotational speed of the first part of the bearing with respect to the second part.
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Inventors:
Deutz, Johannes, Andrianus
Fan, Binden, Johannes, Albertas
Holberg, Eduardus, Geraldas, Maria
Pavelets, Anton
Fan, Binden, Johannes, Albertas
Holberg, Eduardus, Geraldas, Maria
Pavelets, Anton
Application Number:
JP2000577470A
Publication Date:
August 27, 2002
Filing Date:
October 18, 1999
Export Citation:
Assignee:
SKF Engineering and Research Center BV
International Classes:
F16C41/00; G01L13/04; G08C17/00; (IPC1-7): F16C41/00
Attorney, Agent or Firm:
Fujioka Tohru