Abstract: A housing providing for improved windage characteristics in a disc drive, the housing having a multiple bypass configured to receive and direct fluid flow away from a rotating disc pack assembly. The housing further includes a shroud to contain some fluid flow with the disc pack assembly.

Abstract: A disc drive includes a base and a disc rotatably attached to the base. The disc drive also includes an actuator assembly rotatably attached to said base and a device for moving the actuator assembly. A cover is attached to the base. The combination of the cover and base form a disc enclosure for enclosing the disc the actuator assembly and the device for moving the actuator assembly. The cover includes a first layer having a rubber gasket attached thereto, a second layer, and a third layer of damping material positioned between the first layer and second layer. The gasket may be attached to the cover. The gasket may also be formed integral with the cover. The cover reduces relative motion between the actuator assembly and the base while under any type of servo control that requires corrections to be implemented with the voice coil motor.

Abstract: A housing providing for improved windage characteristics in a disc drive, the housing having a multiple bypass configured to receive and direct fluid flow away from a rotating disc pack assembly. The housing further includes a shroud to contain some fluid flow with the disc pack assembly.