摘要:
Hard disk drive track density is increased by selectively increasing the stiffness of a fluid dynamic bearing (FDB) motor during servo write. Applying a load to the shaft of a fixed shaft FDB motor to close the bearing gaps increases stiffness. Alternatively, the disk drive is cooled to increase bearing fluid viscosity or the motor is operated at an increased rotational velocity.
摘要:
A data access assembly with a load arm formed from an Mn—Cu alloy is disclosed. The load arm may be supported by and actuator arm formed from a common Mn—Cu damping alloy, which has a composition (X)Fe—(A)Mn—(B)Cu—(C)Ni. In one embodiment, X is substantially 73, A is substantially 20, B is substantially 5 and C is substantially 2, wherein A, B, C and X represent the weight percent of the respective elements in the composition.