| 摘要 |
The appts. rotatably supports and drives a video information disk in a video recorder-playback machine. The spindle assembly comprises a vertically extending journal having a generally truncated conical shape, which is supported for rotation in an inverted position within a complementary shaped spindle housing. Pressurized air is supplied through a plurality of slotted flow paths to the support interface between the journal and the spindle housing to support the journal for relatively high-speed rotation (such as 1800 rpm) on a cushion of air, with little or no radial eccentricities during rotation. In this manner, the spindle assembly accurately and precisely drives the information disk for consistently accurate recording and playback of video information within the narrowly spaced information tracks on the disk, without signal cross-talk.
|
