Actuator arm with a steel sleeve for thermal off track compensation
AssigneeSeagate Technology LLC
InventorIraj Jabbari
Life of this patent
Estimating the term…
Abstract
The present invention is an apparatus and method for an improved actuator arm assembly in a disc drive. The improvement arises by casting a steel sleeve into the actuator arm to define a pivot bore. A steel bearing and shaft assembly cooperates with the pivot bore to enable the actuator arm to rotate about the shaft. This all steel arrangement minimizes the bearing preload necessary to create a stable actuator arm assembly having a minimum amount of friction in the bearing system.
Claims4
An improved disc drive actuator arm assembly having a substantially triangular actuator arm having a first end and a second end, motor means attached to said first end of said arm for rotatably moving said actuator arm, transducer means attached to said second end of said actuator arm for reading and writing information to a disc, and a stationary shaft surrounded by a bearing system which cooperates with said actuator arm to provide pivotal motion of said actuator arm about said shaft upon activation of said motor means, wherein said improvement comprises:
- a steel sleeve disposed between said bearing system and said actuator arm defining a pivot bore located centrally between said first and second ends of said actuator arm.
Dependencies are inferred from the claim text.