Patent ID: 7280317

Claim:
A disk drive comprising: a rotary actuator including a pivot bearing cartridge, the pivot bearing cartridge having a pivot shaft, the pivot shaft including a shaft body and a shaft threaded end; a disk drive base including an inner side and an opposing outer side, the disk drive base including an actuator support section, the actuator support section including: a seal portion including a seal attachment surface disposed along the outer side; a raised portion extending from the seal portion towards the inner side; an internally threaded hole portion positioned laterally within the raised portion and extending through the raised portion towards the outer side, the hole portion being engaged with the shaft threaded end for attaching the rotary actuator to the disk drive base, the hole portion including a distal end, the distal end not extending beyond the seal attachment surface in a direction from the raised portion towards the seal portion; and a depression formed about the hole portion and between the hole portion and the raised portion; and a substantially flat seal disposed over the hole portion and the depression, the seal being disposed upon the attachment surface for sealing the pivot shaft within the disk drive base.