| 摘要 |
A spindle assembly is provided for rotatably supporting and driving a video information disk in a video recorder-playback machine. The spindle assembly comprises a vertically extended journal having a generally truncated conical shape that 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, supporting the journal for relatively high-speed rotation on a cushion of air. In particular, this spindle assembly has notches (110,112) that are open in the inside radial direction of the conical shaped contact area between the journal (77) and the supporting surface (90) and are open to the inside of multi-radial direction connected to the axis at the groove (106).
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