Arrangement for Driving and Supporting a Component Rotating at High Speed About an Axis
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09
This article concerns an arrangement for driving and supporting a component rotating at high speed about an axis, in particular a magnetic flight height tester, a processor for magnetic disks and magnetic disks in magnetic disk storage systems, respectively. As shown in the figure, there is an aerostatic radial and axial air bearing 1 with a stationary component 2 and a rotating component 3. A support plate 4 is fixed to one axial end of air bearing 1, while a rotor 6 with a permanent magnet 7 of a collectorless DC motor 8 is fixed to the other axial end. Stator 10 of motor 8 is arranged on a base plate to which the stationary component 2 of air bearing 1 is fixed. The rotating component 3 of air bearing 1, to which a shaft 11 of support plate 4 and a shaft end 12 of motor 8 are fitted, takes the form of a hollow cylinder.