Top down assembly of a disk drive actuator using a tolerance ring and a post
AssigneeSeagate Technolocy LLC
InventorsNigel F. Misso, Steve S. Eckerd, Daniel M. Heaton
Life of this patent
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Abstract
An apparatus for reducing manufacturing cost and increasing disc drive actuator assembly stiffness. A post extends from a base deck and supports an actuator assembly and cartridge bearing. In particular, the cartridge bearing comprises a stationary shaft, a bearing supported by the shaft, and a sleeve rotatably supported by the bearing for rotation about the stationary shaft. A first tolerance ring is disposed between an inner surface of the shaft and the post to secure the cartridge bearing in place during assembly. A second tolerance ring is interposed between the cartridge bearing and the E-block to secure the E-block.
Claims10
An actuator assembly for attachment on a base deck of a disc drive, comprising:
- an E-block forming a central opening;
- a post extending from the base deck and supporting the E-block;
- a cartridge bearing disposed over the post and within the central opening formed by the E-block, the cartridge bearing comprising:
- a stationary shaft;
- a bearing supported by the shaft;
- a sleeve rotatably supported by the bearing for rotation about the stationary shaft;
- and
- a first tolerance rind supported by an inner surface of the shaft and disposed between the shaft and the post to secure the cartridge bearing within the central opening.
A disc drive having a base deck supporting a spindle motor, a disc connected to the spindle motor for rotation and having a data surface, and a cover which cooperates with the base deck to provide a sealed enclosure, an actuator assembly having an E-block, the disc drive comprising:
- a post extending fron the base deck and supporting the actuator assembly;
- a cartridge bearing supported by the base deck and cover, the cartridge bearing comprising:
- a stationary shaft disposed over the post;
- a bearing supported by the shaft;
- a sleeve rotatably supported by the bearing for rotation about the stationary shaft;
- and
- a first tolerance ring supported by an inner surface of the shaft and disposed between the shaft and the post to rigidly secure the cartridge bearing;
- a second tolerance ring interposed between the cartridge bearing and the E-block to secure the E-block in place.
Dependencies are inferred from the claim text.