主权项 |
1. A magnet disk assembly comprising:
a cylindrical body of non-magnetic material having a substantially flat first side wall, and a second side wall, a plurality of circumferentially spaced bores located in said body, each of said bores have an end open to said second side wall and closed with a portion of the body to said first side wall, a permanent magnet located in each of said bores, said magnet having an end located adjacent said portion of the body, and a hub joined to the body adapted to be connected to a shaft. |