Use of common head slider for different RPM hard disk drives

A data storage system comprising:

• a first hard disk drive (HDD) comprising a first head slider having a first air bearing surface (ABS) configuration corresponding to a particular baseline fly height at a corresponding particular revolutions-per-minute (RPM), wherein the first HDD is hermetically sealed to form a substantially impermeable container having a first internal pressure level maintained therein and is configured to operate by rotating corresponding first disk media at a particular first RPM at which, prior to assembly, components of the first HDD are configured to operate;
• and
• a second hard disk drive (HDD) comprising a second head slider having a second air bearing surface (ABS) configuration substantially the same as the first ABS configuration corresponding to the particular baseline fly height at the corresponding particular RPM, wherein the second HDD is hermetically sealed to form a substantially impermeable container having a second internal pressure level maintained therein higher than the first internal pressure level and is configured to operate by rotating corresponding second disk media at a particular second RPM at which, prior to assembly, components of the second HDD are configured to operate, wherein the second RPM is lower than the first RPM such that each of the first and the second head sliders operates substantially at the particular baseline fly height while operating at the different first and second RPMs.

A method of manufacturing a plurality of hard disk drives, the method comprising:

• assembling a first hard disk drive (HDD) comprising a first head slider having a first air bearing surface (ABS) configuration corresponding to a particular baseline fly height at a corresponding particular revolutions-per-minute (RPM);
• configuring the first HDD with means for rotating corresponding first disk media at a particular first RPM at which, prior to assembly, components of the first HDD are configured to operate;
• hermetically sealing the first HDD forming a substantially impermeable container having an internal pressure at a first pressure level configured and maintained therein;
• assembling a second hard disk drive (HDD) comprising a second head slider having a second air bearing surface (ABS) configuration substantially the same as the first ABS configuration corresponding to the particular baseline fly height at the corresponding particular RPM;
• configuring the second HDD with means for rotating corresponding second disk media at a particular second RPM at which, prior to assembly, components of the second HDD are configured to operate, wherein the second RPM is higher than the first RPM;
• and
• hermetically sealing the second HDD forming a substantially impermeable container having an internal pressure at a second pressure level configured and maintained therein that is lower than the first pressure level such that each of the first and the second head sliders operates substantially at the particular baseline fly height while operating at different RPMs.