Hitachi, Neomax Engineering, “Development of High Torque Gear (Beat-Max).” http://www.hitachi-metals.co.jp/press/news/2011/n0721.htm

has been cited by the following article:

• TITLE: Surface Magnet Gears with a New Magnet Arrangement and Optimal Shape of Stationary Pole Pieces

  AUTHORS: Tomoyuki Fujita, Yoshinori Ando, Kosuke Nagaya, Masaru Oka, Takashi Todaka, Masato Enokizono, Kazunobu Sugiura

  KEYWORDS: Magnetic Gear; Stationary Pole Piece; Optimal Shape; Halbach Magnet Arrangement

  JOURNAL NAME: Journal of Electromagnetic Analysis and Applications, Vol.5 No.6, June 5, 2013

  ABSTRACT: In mechanical gear systems, dust, noise, vibration, and tooth wear are generated by frictions among gear teeth, and suppressing friction requires lubrication. Magnetic gears transmit torque by magnetic forces without contact and so avoid contact-related problems. The present paper discusses magnet arrangements and the shape of stationary gear teeth to improve transmission torque in surface magnet type magnetic gear transmission mechanisms.