Nsk Corporation

Technical University of Munich Department of Mechanical Engineering

Toshihiko Okamura

Sumio Sugita

Shinji Miyata

Tomoyuki Yanagisawa

Kunihiko Sasao

Hideki Kobayashi

Osamu Yoshimatsu

Keisuke Manabe

Michael Otto

Hiroshi Yanagino

Karsten Stahl

Naser Emamdjomeh

Maximilian Fromberger

A wireless communication system includes a wireless sensor provided inside a metal housing; a receiver provided outside the metal housing to receive radio waves from the wireless sensor; and a passive repeater provided between the inside and the outside of the metal housing. The passive repeater includes a receiving antenna provided inside the metal housing and a transmitting antenna provided outside the metal housing. The receiving antenna of the passive repeater and the transmitting antenna of the passive repeater are electrically connected through a hole formed in the metal housing.

Wireless communication system

There is provided a wireless sensor-equipped bearing. A plurality of magnets are fixed between pockets of a retainer formed of an annular body such that an N pole and an S pole of the magnets neighbor in a circumferential direction of the annular body. A coil, a circuit unit and an antenna are fixed to a surface of a first seal, the surface being opposed to the magnets. A sensor is disposed on any one of an inner ring, an outer ring and the first seal.

Wireless sensor-equipped bearing

Growing community of inventors

Fujisawa, Japan

Toshihiko Okamura