Example of development with OSHIMA Laboratory, Department of Electronic Systems Engineering, Suwa University of Science
Manufacturing of bearing parts for bearingless motors (August 2007)
Overall view of bearingless motor
Production parts (material: Aluminum)
Bearingless Motors vs. Magnetic Bearings
Advantages of using a bearingless motor
It is expected to be used as a drive device for the following environments and conditions
- Bearing lubrication and maintenance is time-consuming
- Lubricants are not available (e.g., at very low temperatures, in vacuum, in liquids, etc.)
- Staining from lubricants can be a problem
- Rocking motion can easily damage the bearings
- There is a need for shortening the length of the rotation axis.